Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.00-5.302.90-3.38
1
7.18
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Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Splintery
Cleavage
None, may show partings on {0001} and {10 1 1}
1 or 2,2 prismatic.
Mohs Hardness
66-7
2
10
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Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6