metamorphic
Green Jadeite
NaAlSi2O6 (Sodium Aluminum Silicate)
Hardness: 6.5–7.0 on Mohs scale; Color: Light to apple green; Luster: Vitreous to greasy; Crystal Structure: Monoclinic; Cleavage: Good; Specific Gravity: 3.25–3.36
- Hardness
- 6
- Color
- Light to apple green
- Luster
- Vitreous to greasy
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Physical properties
Hardness: 6.5–7.0 on Mohs scale; Color: Light to apple green; Luster: Vitreous to greasy; Crystal Structure: Monoclinic; Cleavage: Good; Specific Gravity: 3.25–3.36
Formation & geological history
Formed in high-pressure, low-temperature environments within subduction zones, typically associated with serpentinites. It is a product of regional metamorphism.
Uses & applications
Predominantly used for jewelry (beads, cabochons, bangles), ornamental carvings, and historical artifacts. In various cultures, it is used for talismans and decorative art.
Geological facts
Jadeite is the rarer and more valuable of the two minerals known as 'Jade' (the other being Nephrite). The most prized variety is 'Imperial Jade', a translucent emerald-green stone colored by chromium.
Field identification & locations
Identify by its density (feels heavy for its size) and a characteristic granular or 'sugary' texture under magnification. Commonly found in Myanmar (Burma), Guatemala, and Japan. Polished pieces like the one shown are often found in tumbled stone collections.
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