Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.87-4.143.17-3.18
1
7.18
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Fracture
Subconchoidal, Conchoidal
-
Cleavage
Poor on {120}, in traces on {001}
Perfect
Mohs Hardness
5.5-6-9999
2
10
👆🏻
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 5(PO 4) 3ClAnthony et al , Handbook of mineralogy (2001)