Tenacity
Flexible
Brittle
Solubility
-
slightly water soluble and in hot hydrochloric acid
Durability
-
-
Specific Gravity
4.6-4.763.00-3.25
1
7.18
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Fracture
-
Subconchoidal, Uneven, ConchoidalWalter Schumann
Cleavage
Perfect on {0001}
Octahedral, perfect on {111}, parting on {011}
Mohs Hardness
-99994
2
10
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Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
CaF2