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|caption = BloodstoneGarnet, Blue Spinel, Lapis LazuliMoss Agate, Aquamarine Citrine and FluoriteEmerald

{{Quote|Digging crystals out of the ground, and knowing what they do.}}

'''[[Geology''' ]] allows the collection of gems which are used for crafting and the [[teleportation]] skill. In order to raise this skill a player must first obtain the associated [[Surveying]] skill from [[Jaime Fatholm]], and use a '''Crystal Mineral Survey'''. * Mineral Surveys are named for both a region and color of gemstone. A mineral survey of a given tier leads to a gem from that tier[[Eltibule Orange Mineral Survey]] must be used in [[Eltibule]] and will only reward standard gems tagged with [[:Category:Items/OrangeCrystal]]. Some gems are less common than others, for example Obsidians are not as common when making Blue Mineral Surveys. Blue Crystal Surveys leading to Amethysts are quite popular due to their use * Speed bonus gems can be obtained if you collect another gem deposit shortly after collecting a previous gem deposit. Speed bonus loot table is based on the location and include some of the rarest gems in [[Teleportation]]game. * Gems are used in various crafting recipes to create Enchanted equipment. They're are placed into the Primary Crystal and Secondary Crystal slotsas a method to determine what skills equipment will have when crafted.* Many NPCs like minerals as favor. Some will prefer specific gems, some will like colors categories, and a few will accept any of them.* Blue Mineral Surveys leading to [[Amethyst]]s and Green Mineral Surveys leading to [[Aquamarine]]s are quite popular due to their use in [[Teleportation]].

 ==== Speed Bonus ====If you collect another survey shortly after collecting a previous survey, then you can obtain a speed bonus. While most can be obtained at any location, the amount varies based on the survey location and some gems are more likely to be found at a given location as shown in table below. {| class="sortable wikitable"!Location!Time Required!Number of Gems!Types of Gems|-| [[Serbule Hills]] || 1.5 - 3 min || 1 || * Higher chance for blue and green gems* Lower chance for orange and white gems (other than Winterprize)* Rarely Ilmari gems|-| [[Eltibule]] || 1.5 - 3 min || 1-2 || * Higher chance for blue and green gems* Lower chance for orange and white gems including {{Item|Winterprize}}* Rarely Ilmari gems|-| [[Kur Mountains]] || 2.5 - 4.5 min || 1-3 || * Higher chance for orange and white gems including {{Item|Winterprize}}* Lower chance for blue and green gems* Rarely Ilmari gems|} ===== Tip =====* Try to do as many survey maps per batch as your inventory allows to maximize the amount of speed bonuses you get. ====Gem Tiers===={{:Gems}} ==== Crystal Nodes =====Across [[Alharth]], crystal nodes can be discovered and mined for crystals or gemstones. Often, they They are often found deep in dungeons.

| [[:Category:Items/GreenCrystal|Green Crystals]] Blue Crystal || ??? || ??? ||Often found near tombs in [[Borghild]].

| Pulsing Green Crystal || 20 || ??? || [[Borghild]]|-| Orange Crystal || ??? || ??? || [[Borghild]]|-| White Crystal (yields || 30 || ??? || [[SemiNecromancer's Courtyard]] |-Real Hassium| [[Glowy Yellow Crystal]] || 45 || ??? || [[Gazluk]]Plateau |-| Pulsing Crystal (drop semi-real hassium) || 50 || 150 || [[Gazluk]] Plateau

====Gem TiersCrafting with Gems ====Gems are used in various crafting recipes to create Enchanted equipment. Gems can be placed into the Primary Crystal and Auxiliary Crystal slots in a recipe to determine what skills an item will have when crafted.* {{Item|Goshenite}} and {:{Item| Sunstone}} are two Ilmari Gemswhich are intended to generate Generic treasure effects ([[All_Skills/Treasure_Effects]]). (Confirmed by Citan in [[Game_updates/2018-06-20]]).* {{Item|Danburite}}can currently be used for [[Endurance]] treasure effects ([[Endurance/Treasure_Effects]]), possibly including extraction of augments. ^{Needs confirmation}.* {{Item|Opal}}, {{Item|Goshenite}}, {{Item|Danburite}}, {{Item|Tiger's Eye}}, {{Item|Turquoise}}, {{Item|Emerald}}, {{Item|Sunstone}}, and {{Item|Morganite}} are eight Ilmari Gems used in [[Saddlery]] recipes.* {{Item|Ruby}} and {{Item|Sapphire}} are the only Ilmari Gems currently not used in Saddlery.* {{Item|Amethyst}} and {{Item|Aquamarine}} are used in [[Teleportation]].* {{Item|Diamond}} is useful for resurrection abilities through [[First Aid]] as well as [[Necromancy]] recipes. * [[Dye Making]] uses gemstones, including the Ilmari Gems, in the creation of specific dyes.