Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
1.54-1.552.90-3.02
1
7.18
👆🏻
Fracture
Conchoidal
Subconchoidal, Conchoidal
Cleavage
Poor
Indistinct on {110}
Mohs Hardness
6.5-75-5.5
2
10
👆🏻
Chemical Composition
(Mg,Fe)2SiO4
CaBePO 4(F,OH)Ulrich Henn and Claudio C.