Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.13-3.262.9-3.5
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal
Cleavage
None
{110} Perfect, {???} Distinct, {???} Distinct
Mohs Hardness
-99995.5-6
2
10
👆🏻
Chemical Composition
Ca 5(F,Cl)(PO 4) 3Arthur Thomas , Gemstones (2009)
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)