Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.90-3.023.05-3.08
1
7.18
👆🏻
Fracture
Subconchoidal, Conchoidal
Uneven, Irregular, Conchoidal
Cleavage
Indistinct on {110}
None
Mohs Hardness
5-5.56.5
2
10
👆🏻
Chemical Composition
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)