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Nephrite
Name
Nephrite
Chemical
Formula
Ca2(Mg,Fe)5Si8O22(OH)2[1]
Species
Silicates
Crystal
System
Monoclinic
Mohs
Scale
6-6.5
Color
Translucent to opaque and often mottled. Light to dark green, yellow to brown, white, gray, black.[1]
Luster
dull[1]