metamorphic
Jade (Nephrite or Jadeite)
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2; Jadeite: NaAlSi2O6
AI-generated identification · may be incorrectHardness: 6-7 (Mohs); Color: deep green; Luster: greasy to vitreous; Crystal structure: monoclinic; Cleavage: none/splintery fracture; Specific gravity: 2.9-3.4
- Hardness
- 6-7 (Mohs)
- Color
- deep green
- Luster
- greasy to vitreous
Identified More metamorphic →
Explore Jade (Nephrite or Jadeite) in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6-7 (Mohs); Color: deep green; Luster: greasy to vitreous; Crystal structure: monoclinic; Cleavage: none/splintery fracture; Specific gravity: 2.9-3.4
Formation & geological history
Formed in subduction zones under high pressure and low temperature conditions. Usually found in serpentinite rocks or as water-worn pebbles in rivers.
Uses & applications
Used primarily in jewelry (cabochons), ornamental carvings, and historical tools due to its extreme toughness.
Geological facts
Jade is actually two different minerals: Nephrite and Jadeite. Nephrite is more common and fibrous, while Jadeite is rarer and more valuable. It has been revered in Chinese culture for over 5,000 years.
Field identification & locations
Identify by its waxy luster and cold feel. It is extremely difficult to break. Commonly found in British Columbia, New Zealand, Russia, and Myanmar.
More like this
Other metamorphic specimens
Nephrite Jade
Nephrite
Mineral/Rock
Amphibolite
Amphibolite
metamorphic
Rhodonite
Manganese Silicate (Mn, Fe, Mg, Ca)SiO3
mineral
Rhodonite
(Mn,Fe,Mg,Ca)SiO3
mineral
Greenschist
Greenschist (containing Chlorite, Actinolite, and Epidote)
metamorphic
Garnet
Garnet group: X3Y2(SiO4)3 (commonly Almandine-Pyrope series)
mineral