metamorphic
Jadeite (Jade)
NaAlSi2O6 (Sodium Aluminum Silicate)
Hardness: 6.5-7 Mohs; Color: Apple-green, emerald-green, to white; Luster: Vitreous to greasy; Crystal Structure: Monoclinic; Cleavage: Good; Specific Gravity: 3.2-3.4
- Hardness
- 6
- Color
- Apple-green, emerald-green, to white
- Luster
- Vitreous to greasy
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Physical properties
Hardness: 6.5-7 Mohs; Color: Apple-green, emerald-green, to white; Luster: Vitreous to greasy; Crystal Structure: Monoclinic; Cleavage: Good; Specific Gravity: 3.2-3.4
Formation & geological history
Formed in high-pressure, low-temperature metamorphic environments typical of subduction zones. Usually found in serpentinite-hosted deposits.
Uses & applications
Used extensively in jewelry, ornamental carvings, and historical tools (axes). Highly valued in various cultures for its durability and aesthetic appeal.
Geological facts
Jadeite is one of two minerals known as 'Jade', the other being Nephrite. For centuries, it was used to create tools and ornaments in ancient Olmec and Maya cultures, as well as in Chinese royalty.
Field identification & locations
Identify by its exceptional toughness (resistance to breakage), waxy luster when polished, and high density. Commonly found in Myanmar (Burma), Guatemala, and California.
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