metamorphic
Jadeite (variety of Jade)
Jadeite, NaAlSi₂O₆
Hardness: 6.5-7.0 (Mohs scale), Color: Varying shades of green, Luster: Vitreous to greasy, Crystal structure: Monoclinic (fibrous/granular), Cleavage: Prismatic in two directions at nearly 90 degrees.
- Hardness
- 6
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Physical properties
Hardness: 6.5-7.0 (Mohs scale), Color: Varying shades of green, Luster: Vitreous to greasy, Crystal structure: Monoclinic (fibrous/granular), Cleavage: Prismatic in two directions at nearly 90 degrees.
Formation & geological history
Formed in metamorphic rocks under high pressure and relatively low temperature conditions, typically associated with subduction zones. Its age varies by deposit location.
Uses & applications
Primarily used for ornamental jewelry, sculptures, and cultural artifacts. Historically used for tool making (axes) due to its toughness.
Geological facts
Jadeite is much rarer and more valuable than Nephrite (the other 'jade'). In Chinese culture, it is considered the 'stone of heaven' and has been highly prized for millennia.
Field identification & locations
Identify by its exceptional toughness, cool feel to the touch, and distinct greasy luster. Primarily found in Myanmar (Burma), Guatemala, and Russia. Used as beads in jewelry as seen in the image.
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