Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.19-3.56
1
7.18
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Fracture
-
Uneven, Conchoidal
Cleavage
Indiscernible
{110} Perfect, {010} Indistinct
Mohs Hardness
-99995.5-6
2
10
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Chemical Composition
Ca10(Mg,Fe)2(Si2O7)2(SiO4)2O(OH)2
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)