Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
2.90-3.385.00-5.30
1
7.18
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Fracture
Splintery
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
1 or 2,2 prismatic.
None, may show partings on {0001} and {10 1 1}
Mohs Hardness
6-76
2
10
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Chemical Composition
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
Fe 2O 3Arthur Thomas , Gemstones (2009)