Mineral Factbook

Jade

Trade name

Jade is the trade name covering both jadeite rock and nephrite. The name spans several distinct mineral species.

Photos

Jade specimen photo
Arezarni · CC BY-SA 3.0 · Commons
Jade specimen photo
Mariordo (Mario Roberto Durán Ortiz) · CC BY-SA 4.0 · Commons
Jade specimen photo
Sailko · CC BY-SA 3.0 · Commons
Jade specimen photo
Internet Archive Book Images · No restrictions · Commons

About Jadeite (major)

Full reference data — crystallography, X-ray diffraction, and cited physical properties — is on the Jadeite species page.

FormulaNaAlSi2O6
Hardness (Mohs)6.5-7
Specific gravity3.33-3.35
Density (calculated)3.338
Crystal systemmonoclinic
Color rangegreen, white
Lusterpearly, vitreous
Streakred

About Tremolite (major)

Full reference data — crystallography, X-ray diffraction, and cited physical properties — is on the Tremolite species page.

Formula܆Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2
Density (calculated)2.987
Crystal systemmonoclinic
Streakwhite

About Actinolite (major)

Full reference data — crystallography, X-ray diffraction, and cited physical properties — is on the Actinolite species page.

Formula܆Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)2
Density (calculated)3.117
Crystal systemmonoclinic
Streakwhite