
metamorphic
Jadeite
Jadeite (NaAlSi2O6)
Hardness: 6.5 to 7.0 (Mohs). Color: Pale green (as shown), emerald green (Imperial), white, lavender. Luster: Vitreous to greasy. Crystal Structure: Monoclinic (fibrous/granular aggregate). Specific Gravity: 3.25 to 3.43.
- Hardness
- 6
- Luster
- Vitreous to greasy
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Physical properties
Hardness: 6.5 to 7.0 (Mohs). Color: Pale green (as shown), emerald green (Imperial), white, lavender. Luster: Vitreous to greasy. Crystal Structure: Monoclinic (fibrous/granular aggregate). Specific Gravity: 3.25 to 3.43.
Formation & geological history
Formed in metamorphic rocks under high pressure and low temperature conditions, typically in subduction zones. Most deposits date from the Mesozoic to Cenozoic eras.
Uses & applications
Highly valued for fine jewelry, decorative carvings (like the Pixiu shown), talismans, and luxury ornaments. Grade A jadeite is especially prized for its translucency and color.
Geological facts
Jadeite is one of two minerals known as 'true jade' (the other being Nephrite). The Pixiu carving shown in the image is a mythological Chinese creature believed to bring wealth and good fortune to the wearer.
Field identification & locations
Identify by its 'cold' feel to the touch, dense weight, and high-pitched ring when struck. Commonly found in Myanmar (finest quality), Guatemala, Japan, and California. Collectors look for even color distribution and 'waxy' but high-polish luster.
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