Citrine

Citrine is a raw gem. It is a variety of quartz that ranges in color from pale yellow to brown caused by iron-based impurities.

As an ingredient
Citrine is used in the following recipes:

Blacksmithing

 * Green Iron Helm
 * Polished Steel Boots
 * Golden Scale Boots
 * Shadow Crescent Axe
 * Golden Scale Gauntlets
 * Heavy Mithril Axe
 * Mithril Scale Bracers
 * Steel Plate Helm
 * Truesilver Gauntlets
 * Mithril Scale Shoulders
 * The Shatterer
 * Imperial Plate Shoulders

Engineering

 * Bright-Eye Goggles
 * Accurate Scope
 * Craftsman's Monocle
 * Gnomish Cloaking Device
 * Mechanical Dragonling
 * Fire Goggles
 * Goblin Construction Helmet
 * Goblin Mining Helmet
 * Mithril Heavy-Bore Rifle
 * World Enlarger

Jewelcrafting

 * Blazing Citrine Ring
 * Citrine Ring of Rapid Healing
 * Golden Ring of Power
 * Citrine Pendant of Golden Healing
 * Truesilver Commander's Ring
 * Red Ring of Destruction
 * Gem Studded Band

Leatherworking

 * Gem-Studded Leather Belt

Tailoring

 * Star Belt

As a quest objective
Citrine is needed for the following quest:
 * The Art of the Imbue