metamorphic
Jadeite Jade
Jadeite (NaAlSi2O6)
Hardness: 6.5-7.0 (Mohs scale), Color: Pale green to white, Luster: Vitreous to greasy, Crystal Structure: Monoclinic, Cleavage: Prismatic, Specific Gravity: 3.25-3.35
- Hardness
- 6
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Physical properties
Hardness: 6.5-7.0 (Mohs scale), Color: Pale green to white, Luster: Vitreous to greasy, Crystal Structure: Monoclinic, Cleavage: Prismatic, Specific Gravity: 3.25-3.35
Formation & geological history
Formed at high pressures and low temperatures in subduction zones within metamorphic rocks such as serpentinite. Found in geological formations ranging from the Cretaceous to more recent periods.
Uses & applications
Primarily used in jewelry (beads, cabochons, carvings) and as ornamental decorative pieces and cultural artifacts.
Geological facts
Jadeite is one of two minerals known as jade (the other being nephrite). For centuries, it has been a symbol of status and spirituality in East Asian cultures. The most valuable variety is 'Imperial Jade'.
Field identification & locations
Identify by its high density, coolness to the touch, and distinct 'chime' when struck. For beaded jewelry, look for crystalline grain structures under magnification to distinguish from glass or plastic.
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