Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.323.70-3.90
1
7.18
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Fracture
-
Conchoidal
Cleavage
{???} Distinct, {???} Distinct, {???} Distinct
Perfect on {011}, fair on {100}, poor on {110}
Mohs Hardness
-99993.5-4
2
10
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Chemical Composition
LiFe3+ (PO 4)(OH)Anthony et al , Handbook of mineralogy (2001)
Cu 3(OH) 2(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references