metamorphic
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
Hardness: 6.5-7.0 on Mohs scale; Color: Lavender-grey with translucent zones; Luster: Vitreous to greasy; Structure: Monoclinic, interlocking microcrystalline fibrous texture; Cleavage: Prismatic, but rarely seen in carved pieces; Specific Gravity: Approx 3.3.
- Hardness
- 6
- Color
- Lavender-grey with translucent zones
- Luster
- Vitreous to greasy
Identified More metamorphic →
Explore Jadeite Jade in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6.5-7.0 on Mohs scale; Color: Lavender-grey with translucent zones; Luster: Vitreous to greasy; Structure: Monoclinic, interlocking microcrystalline fibrous texture; Cleavage: Prismatic, but rarely seen in carved pieces; Specific Gravity: Approx 3.3.
Formation & geological history
Formed under high-pressure, low-temperature conditions in subduction zones. Most high-quality jadeite dates from the Mesozoic or Tertiary periods and occurs as nodules in serpentinite.
Uses & applications
Primarily used for fine jewelry, traditional Chinese carvings, talismans, and investment collecting.
Geological facts
Jadeite is one of the two minerals recognized as 'Jade' (the other being Nephrite). It is exceptionally tough due to its interlocking fibrous structure, making it ideal for intricate carvings like this Zodiac rooster.
Field identification & locations
Identify by cold feel, high density (it feels heavy for its size), and a distinctive 'clink' sound when tapped. Found commonly in Myanmar (Burma), Guatemala, and Japan. Collectors should watch for 'B' or 'C' grade treatments (bleaching/dyeing).
More like this
