Tenacity
-
-
Solubility
insoluble
-
Durability
-
-
Specific Gravity
-99993.16-3.23
1
7.18
👆🏻
Fracture
-
Conchoidal, Uneven, Conchoidal to uneven
Cleavage
{???} Imperfect, {???} Imperfect
[0001] indistinct, [1010] indistinct
Mohs Hardness
-99995
2
10
👆🏻
Chemical Composition
S8
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references