I added in a custom ore and stone Mytheril and Mytheril Rock. When I mine an area for Platinum that's what I get unless, I use a Gargoyles Pickaxe... then I get Mytheril Rock. Can someone tell me where I went wrong? Thank you :)

C#:
using System;
using Server;
using Server.Items;
using Server.Mobiles;
using Server.Targeting;
using daat99;

namespace Server.Engines.Harvest
{
    public class Mining : HarvestSystem
    {
        private static Mining m_System;

        public static Mining System
        {
            get
            {
                if (m_System == null)
                    m_System = new Mining();

                return m_System;
            }
        }

        private readonly HarvestDefinition m_OreAndStone;

        private readonly HarvestDefinition m_Sand;

        public HarvestDefinition OreAndStone
        {
            get
            {
                return this.m_OreAndStone;
            }
        }

        public HarvestDefinition Sand
        {
            get
            {
                return this.m_Sand;
            }
        }

        private Mining()
        {
            HarvestResource[] res;
            HarvestVein[] veins;

            #region Mining for ore and stone
            HarvestDefinition oreAndStone = this.m_OreAndStone = new HarvestDefinition();

            // Resource banks are every 8x8 tiles
            oreAndStone.BankWidth = 8;
            oreAndStone.BankHeight = 8;

            // Every bank holds from 10 to 34 ore
            oreAndStone.MinTotal = 10;
            oreAndStone.MaxTotal = 34;

            // A resource bank will respawn its content every 10 to 20 minutes
            oreAndStone.MinRespawn = TimeSpan.FromMinutes(10.0);
            oreAndStone.MaxRespawn = TimeSpan.FromMinutes(20.0);

            // Skill checking is done on the Mining skill
            oreAndStone.Skill = SkillName.Mining;

            // Set the list of harvestable tiles
            oreAndStone.Tiles = m_MountainAndCaveTiles;

            // Players must be within 2 tiles to harvest
            oreAndStone.MaxRange = 2;

            // One ore per harvest action
            oreAndStone.ConsumedPerHarvest = 1;
            oreAndStone.ConsumedPerFeluccaHarvest = 2;

            // The digging effect
            oreAndStone.EffectActions = new int[] { 11 };
            oreAndStone.EffectSounds = new int[] { 0x125, 0x126 };
            oreAndStone.EffectCounts = new int[] { 1 };
            oreAndStone.EffectDelay = TimeSpan.FromSeconds(1.6);
            oreAndStone.EffectSoundDelay = TimeSpan.FromSeconds(0.9);

            oreAndStone.NoResourcesMessage = 503040; // There is no metal here to mine.
            oreAndStone.DoubleHarvestMessage = 503042; // Someone has gotten to the metal before you.
            oreAndStone.TimedOutOfRangeMessage = 503041; // You have moved too far away to continue mining.
            oreAndStone.OutOfRangeMessage = 500446; // That is too far away.
            oreAndStone.FailMessage = 503043; // You loosen some rocks but fail to find any useable ore.
            oreAndStone.PackFullMessage = 1010481; // Your backpack is full, so the ore you mined is lost.
            oreAndStone.ToolBrokeMessage = 1044038; // You have worn out your tool!

            res = new HarvestResource[]
            {
                    //daat99 OWLTR start - custom ores
                    new HarvestResource( 00.0, 00.0, 95.0, "You put some Iron ore in your backpack",            typeof( IronOre ),                typeof( Granite ) ),
                    new HarvestResource( 60.0, 20.0, 100.0, "You put some Dull Copper ore in your backpack",    typeof( DullCopperOre ),        typeof( DullCopperGranite ),    typeof( DullCopperOreElemental ) ),
                    new HarvestResource( 65.0, 25.0, 105.0, "You put some Shadow Iron ore in your backpack",    typeof( ShadowIronOre ),        typeof( ShadowIronGranite ),    typeof( ShadowIronOreElemental ) ),
                    new HarvestResource( 70.0, 30.0, 110.0, "You put some Copper ore in your backpack",            typeof( CopperOre ),            typeof( CopperGranite ),        typeof( CopperOreElemental ) ),
                    new HarvestResource( 75.0, 35.0, 115.0, "You put some Bronze ore in your backpack",            typeof( BronzeOre ),            typeof( BronzeGranite ),        typeof( BronzeOreElemental ) ),
                    new HarvestResource( 80.0, 40.0, 120.0, "You put some Gold ore in your backpack",            typeof( GoldOre ),                typeof( GoldGranite ),            typeof( GoldenOreElemental ) ),
                    new HarvestResource( 85.0, 45.0, 125.0, "You put some Agapite ore in your backpack",        typeof( AgapiteOre ),            typeof( AgapiteGranite ),        typeof( AgapiteOreElemental ) ),
                    new HarvestResource( 90.0, 50.0, 130.0, "You put some Verite ore in your backpack",            typeof( VeriteOre ),            typeof( VeriteGranite ),        typeof( VeriteOreElemental ) ),
                    new HarvestResource( 95.0, 55.0, 135.0, "You put some Valorite ore in your backpack",        typeof( ValoriteOre ),            typeof( ValoriteGranite ),        typeof( ValoriteOreElemental ) ),
                    new HarvestResource( 100.0, 60.0, 140.0, "You put some Blaze ore in your backpack",            typeof( BlazeOre ),                typeof( BlazeGranite ),            typeof( BlazeOreElemental ) ),
                    new HarvestResource( 105.0, 65.0, 145.0, "You put some Ice ore in your backpack",             typeof( IceOre ),                typeof( IceGranite ),            typeof( IceOreElemental ) ),
                    new HarvestResource( 110.0, 70.0, 150.0, "You put some Toxic ore in your backpack",            typeof( ToxicOre ),                typeof( ToxicGranite ),            typeof( ToxicOreElemental ) ),
                    new HarvestResource( 115.0, 75.0, 155.0, "You put some Electrum ore in your backpack",        typeof( ElectrumOre ),            typeof( ElectrumGranite ),        typeof( ElectrumOreElemental ) ),
                    
                    new HarvestResource( 119.0, 79.0, 159.0, "You put some Platinum ore in your backpack",        typeof( PlatinumOre ),            typeof( PlatinumGranite ),        typeof( PlatinumOreElemental ) ),
                    new HarvestResource( 116.0, 76.0, 156.0, "You loosen a Mytheril Rock and put it in your backpack",typeof( MytherilRock ),   typeof( MytherilGranite ),        typeof( MytherilOreElemental )),
                    new HarvestResource( 118.0, 78.0, 158.0, "You put some Mytheril ore in your backpack",        typeof( MytherilOre ),            typeof( MytherilGranite ),        typeof( MytherilOreElemental ) )                    
                          //daat99 OWLTR end - custom ores
                };

            veins = new HarvestVein[]
                {
                    //daat99 OWLTR start - custom ores

                     new HarvestVein( 20.0, 0.0, res[0], null   ), // Iron
                    new HarvestVein( 09.0, 0.5, res[1], res[0] ), // Dull Copper
                    new HarvestVein( 08.5, 0.5, res[2], res[0] ), // Shadow Iron
                    new HarvestVein( 08.0, 0.5, res[3], res[0] ), // Copper
                    new HarvestVein( 07.5, 0.5, res[4], res[0] ), // Bronze
                    new HarvestVein( 07.0, 0.5, res[5], res[0] ), // Gold
                    new HarvestVein( 06.5, 0.5, res[6], res[0] ), // Agapite
                    new HarvestVein( 06.0, 0.5, res[7], res[0] ), // Verite
                    new HarvestVein( 05.5, 0.5, res[8], res[0] ),  // Valorite
                    new HarvestVein( 05.0, 0.5, res[9], res[0] ), // Blaze
                    new HarvestVein( 04.5, 0.5, res[10], res[0] ), // Ice
                    new HarvestVein( 04.0, 0.5, res[11], res[0] ), // Toxic
                    new HarvestVein( 03.5, 0.5, res[12], res[0] ), // Electrum
                    new HarvestVein( 01.0, 0.5, res[15], res[0] ), // Platinum                    
                    new HarvestVein( 02.5, 0.5, res[13], res[0] ), // Mytheril Rock 
                    new HarvestVein( 01.5, 0.5, res[14], res[0] ) // Mytheril                         
                    //daat99 OWLTR end - custom ores
                };

            oreAndStone.Resources = res;
            oreAndStone.Veins = veins;

            if (Core.ML)
            {
                oreAndStone.BonusResources = new BonusHarvestResource[]
                {                      
                    new BonusHarvestResource(0, 94.6, null, null), //Nothing
                    new BonusHarvestResource(100, .1, 1072562, typeof(BlueDiamond)),
                    new BonusHarvestResource(100, .1, 1072567, typeof(DarkSapphire)),
                    new BonusHarvestResource(100, .1, 1072570, typeof(EcruCitrine)),
                    new BonusHarvestResource(100, .1, 1072564, typeof(FireRuby)),
                    new BonusHarvestResource(100, .1, 1072566, typeof(PerfectEmerald)),
                    new BonusHarvestResource(100, .1, 1072568, typeof(Turquoise)),
                    new BonusHarvestResource(100, .1, 1077180, typeof(SmallPieceofBlackrock)),
                    new BonusHarvestResource(100, .1, 1113344, typeof(CrystallineBlackrock), Map.TerMur),
                    new BonusHarvestResource(100, .1, "you dig up a Rough Stone and put it in your backpack", typeof( RoughStone ), Map.Malas),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Blue1FocusingCrystal ), Map.Trammel), 
                    
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Blue3FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Blue4FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Blue6FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Green1FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Green3FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Green4FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Green5FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Yellow1FocusingCrystal ), Map.Trammel),    
                     new BonusHarvestResource(110, .1, "you dig up a crystal and put it in your backpack", typeof( Yellow2FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( White2FocusingCrystal ), Map.Trammel), 
                    
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( White5FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( White8FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Red5FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Pink2FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Pink3FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Purple1FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Purple2FocusingCrystal ), Map.Trammel),    
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Orange1FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Orange3FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Cyan1FocusingCrystal ), Map.Trammel),  
                    
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Cyan2FocusingCrystal ), Map.Trammel),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Blue2FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Blue5FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Green2FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Yellow3FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( White1FocusingCrystal ), Map.Felucca),    
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( White6FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Red2FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Orange4FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Brown1FocusingCrystal ), Map.Felucca),  
                    
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( White3FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( White4FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( White7FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Gray1FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Gray2FocusingCrystal ), Map.Felucca),    
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Gray3FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Red1FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Red3FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Red4FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Red6FocusingCrystal ), Map.Felucca),  
                    
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Red7FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Pink1FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Orange2FocusingCrystal ), Map.Felucca),
                    new BonusHarvestResource(100, .1, "you dig up a crystal and put it in your backpack", typeof( Brown2FocusingCrystal ), Map.Felucca),        
                };
            }

            oreAndStone.RaceBonus = Core.ML;
            oreAndStone.RandomizeVeins = false;  //Core.ML; 

            this.Definitions.Add(oreAndStone);
            #endregion

            #region Mining for sand
            HarvestDefinition sand = this.m_Sand = new HarvestDefinition();

            // Resource banks are every 8x8 tiles
            sand.BankWidth = 8;
            sand.BankHeight = 8;

            // Every bank holds from 6 to 12 sand
            sand.MinTotal = 6;
            sand.MaxTotal = 12;

            // A resource bank will respawn its content every 10 to 20 minutes
            sand.MinRespawn = TimeSpan.FromMinutes(10.0);
            sand.MaxRespawn = TimeSpan.FromMinutes(20.0);

            // Skill checking is done on the Mining skill
            sand.Skill = SkillName.Mining;

            // Set the list of harvestable tiles
            sand.Tiles = m_SandTiles;

            // Players must be within 2 tiles to harvest
            sand.MaxRange = 2;

            // One sand per harvest action
            sand.ConsumedPerHarvest = 1;
            sand.ConsumedPerFeluccaHarvest = 1;

            // The digging effect
            sand.EffectActions = new int[] { 11 };
            sand.EffectSounds = new int[] { 0x125, 0x126 };
            sand.EffectCounts = new int[] { 6 };
            sand.EffectDelay = TimeSpan.FromSeconds(1.6);
            sand.EffectSoundDelay = TimeSpan.FromSeconds(0.9);

            sand.NoResourcesMessage = 1044629; // There is no sand here to mine.
            sand.DoubleHarvestMessage = 1044629; // There is no sand here to mine.
            sand.TimedOutOfRangeMessage = 503041; // You have moved too far away to continue mining.
            sand.OutOfRangeMessage = 500446; // That is too far away.
            sand.FailMessage = 1044630; // You dig for a while but fail to find any of sufficient quality for glassblowing.
            sand.PackFullMessage = 1044632; // Your backpack can't hold the sand, and it is lost!
            sand.ToolBrokeMessage = 1044038; // You have worn out your tool!

            res = new HarvestResource[]
            {
                new HarvestResource(100.0, 70.0, 400.0, 1044631, typeof(Sand))
            };

            veins = new HarvestVein[]
            {
                new HarvestVein(100.0, 0.0, res[0], null)
            };

            sand.Resources = res;
            sand.Veins = veins;

            this.Definitions.Add(sand);
            #endregion
        }

        public override Type GetResourceType(Mobile from, Item tool, HarvestDefinition def, Map map, Point3D loc, HarvestResource resource)
        {
            if (def == this.m_OreAndStone)
            {
                #region Void Pool Items
                HarvestMap hmap = HarvestMap.CheckMapOnHarvest(from, loc, def);

                if (hmap != null && hmap.Resource >= CraftResource.Iron && hmap.Resource <= CraftResource.Valorite)
                {
                    hmap.UsesRemaining--;
                    hmap.InvalidateProperties();

                    CraftResourceInfo info = CraftResources.GetInfo(hmap.Resource);

                    if (info != null)
                        return info.ResourceTypes[1];
                }
                #endregion

                PlayerMobile pm = from as PlayerMobile;

                if (pm != null && pm.GemMining && pm.ToggleMiningGem && from.Skills[SkillName.Mining].Base >= 100.0 && 0.1 > Utility.RandomDouble())
                    return Loot.RandomGem().GetType();

                if (pm != null && pm.StoneMining && pm.ToggleMiningStone && from.Skills[SkillName.Mining].Base >= 100.0 && 0.15 > Utility.RandomDouble())
                    return resource.Types[1];

                return resource.Types[0];
            }

            return base.GetResourceType(from, tool, def, map, loc, resource);
        }

        public override bool CheckResources(Mobile from, Item tool, HarvestDefinition def, Map map, Point3D loc, bool timed)
        {
            if (HarvestMap.CheckMapOnHarvest(from, loc, def) == null)
                return base.CheckResources(from, tool, def, map, loc, timed);

            return true;
        }

        public override bool CheckHarvest(Mobile from, Item tool)
        {
            if (!base.CheckHarvest(from, tool))
                return false;

            if (from.Mounted)
            {
                from.SendLocalizedMessage(501864); // You can't mine while riding.
                return false;
            }
            else if (from.IsBodyMod && !from.Body.IsHuman)
            {
                from.SendLocalizedMessage(501865); // You can't mine while polymorphed.
                return false;
            }

            return true;
        }

        public override void SendSuccessTo(Mobile from, Item item, HarvestResource resource)
        {
            if (item is BaseGranite)
                from.SendLocalizedMessage(1044606); // You carefully extract some workable stone from the ore vein!
            else if (item is IGem)
                from.SendLocalizedMessage(1112233); // You carefully extract a glistening gem from the vein!
            else
                base.SendSuccessTo(from, item, resource);
        }

        public override bool CheckHarvest(Mobile from, Item tool, HarvestDefinition def, object toHarvest)
        {
            if (!base.CheckHarvest(from, tool, def, toHarvest))
                return false;

            if (def == this.m_Sand && !(from is PlayerMobile && from.Skills[SkillName.Mining].Base >= 100.0 && ((PlayerMobile)from).SandMining))
            {
                this.OnBadHarvestTarget(from, tool, toHarvest);
                return false;
            }
            else if (from.Mounted)
            {
                from.SendLocalizedMessage(501864); // You can't mine while riding.
                return false;
            }
            else if (from.IsBodyMod && !from.Body.IsHuman)
            {
                from.SendLocalizedMessage(501865); // You can't mine while polymorphed.
                return false;
            }

            return true;
        }

        public override HarvestVein MutateVein(Mobile from, Item tool, HarvestDefinition def, HarvestBank bank, object toHarvest, HarvestVein vein)
        {
            if (tool is GargoylesPickaxe && def == this.m_OreAndStone)
            {
                int veinIndex = Array.IndexOf(def.Veins, vein);

                if (veinIndex >= 0 && veinIndex < (def.Veins.Length - 1))
                    return def.Veins[veinIndex + 1];
            }

            return base.MutateVein(from, tool, def, bank, toHarvest, vein);
        }

        private static readonly int[] m_Offsets = new int[]
        {
            -1, -1,
            -1, 0,
            -1, 1,
            0, -1,
            0, 1,
            1, -1,
            1, 0,
            1, 1
        };

        public override void OnHarvestFinished(Mobile from, Item tool, HarvestDefinition def, HarvestVein vein, HarvestBank bank, HarvestResource resource, object harvested, Type type)
        {                                                              //0.1
            if (tool is GargoylesPickaxe && def == this.m_OreAndStone && 0.2 > Utility.RandomDouble() && HarvestMap.CheckMapOnHarvest(from, harvested, def) == null)
            {
                HarvestResource res = vein.PrimaryResource;

                if (res == resource && res.Types.Length >= 3)
                {
                    try
                    {
                        Map map = from.Map;

                        if (map == null)
                           return;
                        //daat99 OWLTR start - gargoyle spawn
                        BaseCreature spawned = null;
                        try
                        {
                            int i_Level = CraftResources.GetIndex(CraftResources.GetFromType(type)) + 1;
                            if (i_Level > 1)
                                spawned = new Elementals(i_Level);
                        }
                        catch { }
                        if (spawned == null)
                        //daat99 OWLTR end - gargoyle spawn
                          spawned = Activator.CreateInstance(res.Types[10], new object[] { 25 }) as BaseCreature; ;

                        if (spawned != null)
                        {
                            int offset = Utility.Random(8) * 2;

                            for (int i = 0; i < m_Offsets.Length; i += 2)
                            {
                                int x = from.X + m_Offsets[(offset + i) % m_Offsets.Length];
                                int y = from.Y + m_Offsets[(offset + i + 1) % m_Offsets.Length];

                                if (map.CanSpawnMobile(x, y, from.Z))
                                {
                                    spawned.OnBeforeSpawn(new Point3D(x, y, from.Z), map);
                                    spawned.MoveToWorld(new Point3D(x, y, from.Z), map);
                                    spawned.Combatant = from;
                                    return;
                                }
                                else
                                {
                                    int z = map.GetAverageZ(x, y);

                                    if (Math.Abs(z - from.Z) < 10 && map.CanSpawnMobile(x, y, z))
                                    {
                                        spawned.OnBeforeSpawn(new Point3D(x, y, z), map);
                                        spawned.MoveToWorld(new Point3D(x, y, z), map);
                                        spawned.Combatant = from;
                                        return;
                                    }
                                }
                            }

                            spawned.OnBeforeSpawn(from.Location, from.Map);
                            spawned.MoveToWorld(from.Location, from.Map);
                            spawned.Combatant = from;
                        }
                    }
                    catch
                    {
                    }
                }
            }
        }

        #region High Seas
        public override bool SpecialHarvest(Mobile from, Item tool, HarvestDefinition def, Map map, Point3D loc)
        {
            if (!Core.HS)
                return base.SpecialHarvest(from, tool, def, map, loc);

            HarvestBank bank = def.GetBank(map, loc.X, loc.Y);

            if (bank == null)
                return false;

            bool boat = Server.Multis.BaseBoat.FindBoatAt(from, from.Map) != null;
            bool dungeon = IsDungeonRegion(from);

            if (!boat && !dungeon)
                return false;

            if (boat || !NiterDeposit.HasBeenChecked(bank))
            {
                double bonus = (from.Skills[SkillName.Mining].Value / 9999) + ((double)from.Luck / 150000);

                if (boat)
                    bonus -= (bonus * .33);

                if (dungeon)
                    NiterDeposit.AddBank(bank);

                if (Utility.RandomDouble() < bonus)
                {
                    int size = Utility.RandomMinMax(1, 5);

                    if (from.Luck / 2500 > Utility.RandomDouble())
                        size++;

                    NiterDeposit niter = new NiterDeposit(size);

                    if (!dungeon)
                    {
                        niter.MoveToWorld(new Point3D(loc.X, loc.Y, from.Z + 3), from.Map);
                        from.SendLocalizedMessage(1149918, niter.Size.ToString()); //You have uncovered a ~1_SIZE~ deposit of niter! Mine it to obtain saltpeter.
                        NiterDeposit.AddBank(bank);
                        return true;
                    }
                    else
                    {
                        for (int i = 0; i < 50; i++)
                        {
                            int x = Utility.RandomMinMax(loc.X - 2, loc.X + 2);
                            int y = Utility.RandomMinMax(loc.Y - 2, loc.Y + 2);
                            int z = from.Z;

                            if (from.Map.CanSpawnMobile(x, y, z))
                            {
                                niter.MoveToWorld(new Point3D(x, y, z), from.Map);
                                from.SendLocalizedMessage(1149918, niter.Size.ToString()); //You have uncovered a ~1_SIZE~ deposit of niter! Mine it to obtain saltpeter.
                                return true;
                            }
                        }
                    }

                    niter.Delete();
                }
            }

            return false;
        }

        private bool IsDungeonRegion(Mobile from)
        {
            if (from == null)
                return false;

            Map map = from.Map;
            Region reg = from.Region;
            Rectangle2D bounds = new Rectangle2D(0, 0, 5114, 4100);

            if ((map == Map.Felucca || map == Map.Trammel) && bounds.Contains(new Point2D(from.X, from.Y)))
                return false;

            return reg != null && (reg.IsPartOf(typeof(Server.Regions.DungeonRegion)) || map == Map.Ilshenar);
        }
        #endregion

        public override bool BeginHarvesting(Mobile from, Item tool)
        {
            if (!base.BeginHarvesting(from, tool))
                return false;

            from.SendLocalizedMessage(503033); // Where do you wish to dig?
            return true;
        }

        public override void OnHarvestStarted(Mobile from, Item tool, HarvestDefinition def, object toHarvest)
        {
            base.OnHarvestStarted(from, tool, def, toHarvest);

            if (Core.ML)
                from.RevealingAction();
        }

        public override void OnBadHarvestTarget(Mobile from, Item tool, object toHarvest)
        {
            if (toHarvest is LandTarget)
                from.SendLocalizedMessage(501862); // You can't mine there.
            else
                from.SendLocalizedMessage(501863); // You can't mine that.
        }

        #region Tile lists
        private static readonly int[] m_MountainAndCaveTiles = new int[]
        {
            220, 221, 222, 223, 224, 225, 226, 227, 228, 229,
            230, 231, 236, 237, 238, 239, 240, 241, 242, 243,
            244, 245, 246, 247, 252, 253, 254, 255, 256, 257,
            258, 259, 260, 261, 262, 263, 268, 269, 270, 271,
            272, 273, 274, 275, 276, 277, 278, 279, 286, 287,
            288, 289, 290, 291, 292, 293, 294, 296, 296, 297,
            321, 322, 323, 324, 467, 468, 469, 470, 471, 472,
            473, 474, 476, 477, 478, 479, 480, 481, 482, 483,
            484, 485, 486, 487, 492, 493, 494, 495, 543, 544,
            545, 546, 547, 548, 549, 550, 551, 552, 553, 554,
            555, 556, 557, 558, 559, 560, 561, 562, 563, 564,
            565, 566, 567, 568, 569, 570, 571, 572, 573, 574,
            575, 576, 577, 578, 579, 581, 582, 583, 584, 585,
            586, 587, 588, 589, 590, 591, 592, 593, 594, 595,
            596, 597, 598, 599, 600, 601, 610, 611, 612, 613,
            1010, 1741, 1742, 1743, 1744, 1745, 1746, 1747, 1748, 1749,
            1750, 1751, 1752, 1753, 1754, 1755, 1756, 1757, 1771, 1772,
            1773, 1774, 1775, 1776, 1777, 1778, 1779, 1780, 1781, 1782,
            1783, 1784, 1785, 1786, 1787, 1788, 1789, 1790, 1801, 1802,
            1803, 1804, 1805, 1806, 1807, 1808, 1809, 1811, 1812, 1813,
            1814, 1815, 1816, 1817, 1818, 1819, 1820, 1821, 1822, 1823,
            1824, 1831, 1832, 1833, 1834, 1835, 1836, 1837, 1838, 1839,
            1840, 1841, 1842, 1843, 1844, 1845, 1846, 1847, 1848, 1849,
            1850, 1851, 1852, 1853, 1854, 1861, 1862, 1863, 1864, 1865,
            1866, 1867, 1868, 1869, 1870, 1871, 1872, 1873, 1874, 1875,
            1876, 1877, 1878, 1879, 1880, 1881, 1882, 1883, 1884, 1981,
            1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991,
            1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
            2002, 2003, 2004, 2028, 2029, 2030, 2031, 2032, 2033, 2100,
            2101, 2102, 2103, 2104, 2105,
            0x453B, 0x453C, 0x453D, 0x453E, 0x453F, 0x4540, 0x4541,
            0x4542, 0x4543, 0x4544, 0x4545, 0x4546, 0x4547, 0x4548,
            0x4549, 0x454A, 0x454B, 0x454C, 0x454D, 0x454E, 0x454F
        };

        private static readonly int[] m_SandTiles = new int[]
        {
            22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
            32, 33, 34, 35, 36, 37, 38, 39, 40, 41,
            42, 43, 44, 45, 46, 47, 48, 49, 50, 51,
            52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
            62, 68, 69, 70, 71, 72, 73, 74, 75,
            286, 287, 288, 289, 290, 291, 292, 293, 294, 295,
            296, 297, 298, 299, 300, 301, 402, 424, 425, 426,
            427, 441, 442, 443, 444, 445, 446, 447, 448, 449,
            450, 451, 452, 453, 454, 455, 456, 457, 458, 459,
            460, 461, 462, 463, 464, 465, 642, 643, 644, 645,
            650, 651, 652, 653, 654, 655, 656, 657, 821, 822,
            823, 824, 825, 826, 827, 828, 833, 834, 835, 836,
            845, 846, 847, 848, 849, 850, 851, 852, 857, 858,
            859, 860, 951, 952, 953, 954, 955, 956, 957, 958,
            967, 968, 969, 970,
            1447, 1448, 1449, 1450, 1451, 1452, 1453, 1454, 1455,
            1456, 1457, 1458, 1611, 1612, 1613, 1614, 1615, 1616,
            1617, 1618, 1623, 1624, 1625, 1626, 1635, 1636, 1637,
            1638, 1639, 1640, 1641, 1642, 1647, 1648, 1649, 1650
        };
        #endregion
    }
}
 
The whole point behind a gargoyle's pickaxe is that it raises a vein by one level, so mining a plat deposit with one should give you mytheril rock. Sounds like it's working like it should.
 
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