Tenacity
Brittle
-
Solubility
Slowly dissolves in water
-
Durability
-
-
Specific Gravity
-99993.16-3.23
1
7.18
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Fracture
Conchoidal
Conchoidal, Uneven, Conchoidal to uneven
Cleavage
None
[0001] indistinct, [1010] indistinct
Mohs Hardness
3.5-45
2
10
👆🏻
Chemical Composition
K2Mg2(SO4)3
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references