metamorphic
Jadeite Jade
Jadeite (NaAlSi2O6)
Hardness: 6.5 to 7.0 (Mohs scale), Color: Pale to medium green with white mottling, Luster: Vitreous to greasy, Crystal structure: Monoclinic, Cleavage: Prismatic, Specific Gravity: 3.25 to 3.35
- Hardness
- 6
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Physical properties
Hardness: 6.5 to 7.0 (Mohs scale), Color: Pale to medium green with white mottling, Luster: Vitreous to greasy, Crystal structure: Monoclinic, Cleavage: Prismatic, Specific Gravity: 3.25 to 3.35
Formation & geological history
Formed in high-pressure, low-temperature metamorphic environments such as subduction zones. Typically found in serpentinite-associated rocks. Most high-quality specimens are millions of years old.
Uses & applications
Primarily used for high-end jewelry (bangles, pendants, rings), ornamental carvings, and historical artifacts. Highly valued in Asian cultures as a symbol of status and protection.
Geological facts
Jadeite is one of two minerals known as jade (the other being Nephrite). The most rare and expensive color is 'Imperial Green'. It is significantly tougher than its hardness suggests due to its interlocking fibrous structure.
Field identification & locations
Identify by its cool feel to the touch, dense weight, and characteristic 'chime' when struck with a hard object (if authentic and untreated). Common locations include Myanmar (Burma), Guatemala, Japan, and California.
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