Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.25-3.503.16-3.23
1
7.18
👆🏻
Fracture
Uneven
Conchoidal, Uneven, Conchoidal to uneven
Cleavage
Distinct
[0001] indistinct, [1010] indistinct
Mohs Hardness
-99995
2
10
👆🏻
Chemical Composition
Ca 10Mg 2Al 4(SiO 4) 5(Si 2O 7) 2(OH) 4Ulrich Henn and Claudio C.
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references