gemstone
Jade
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)
AI-generated identification · may be incorrectHardness: 6-7 on Mohs scale; Color: Light green to dark green, white, yellow; Luster: Vitreous to greasy; Crystal Structure: Monoclinic; Cleavage: None (extremely tough and interlocking fibrous structure); Specific Gravity: 2.9-3.4
- Hardness
- 6-7 on Mohs scale
- Color
- Light green to dark green, white, yellow
- Luster
- Vitreous to greasy
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Physical properties
Hardness: 6-7 on Mohs scale; Color: Light green to dark green, white, yellow; Luster: Vitreous to greasy; Crystal Structure: Monoclinic; Cleavage: None (extremely tough and interlocking fibrous structure); Specific Gravity: 2.9-3.4
Formation & geological history
Formed under high-pressure, low-temperature metamorphic conditions, typically in serpentinates along subduction zones.
Uses & applications
Used primarily in fine jewelry, carved ornaments, cultural artifacts, and decorative weapons.
Geological facts
Jade has been prized in Chinese civilization for over 7,000 years, symbolizing purity, moral integrity, and status. It is actually comprised of two distinct mineral species: jadeite and nephrite.
Field identification & locations
Identified by its remarkable toughness, resistance to fracturing, and greasy-to-vitreous luster. Found in Myanmar, Guatemala, Russia, and the western United States.
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