Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.16-3.233.31
1
7.18
👆🏻
Fracture
Conchoidal, Uneven, Conchoidal to uneven
-
Cleavage
[0001] indistinct, [1010] indistinct
Indiscernible
Mohs Hardness
5-9999
2
10
👆🏻
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
NaFe 3+ 3 Al 6 (BO 3 ) 3 Si 6 O 18 (O,F,OH) 4 Anthony et al, Handbook of mineralogy (2001)