Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.16-3.231.79
1
7.18
👆🏻
Fracture
Conchoidal, Uneven, Conchoidal to uneven
Irregular/uneven
Cleavage
[0001] indistinct, [1010] indistinct
Perfect on {10bar10}
Mohs Hardness
52.5
2
10
👆🏻
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)