Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.55-3.733.16-3.23
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Conchoidal, Uneven, Conchoidal to uneven
Cleavage
none
[0001] indistinct, [1010] indistinct
Mohs Hardness
7-7.55
2
10
👆🏻
Chemical Composition
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references