Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.16-3.232.00-2.45
1
7.18
👆🏻
Fracture
Conchoidal, Uneven, Conchoidal to uneven
Sub-Conchoidal, Conchoidal
Cleavage
[0001] indistinct, [1010] indistinct
none
Mohs Hardness
52-4
2
10
👆🏻
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Cu2H2Si2O5(OH)4