Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.16-3.232.58-2.80
1
7.18
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Fracture
Conchoidal, Uneven, Conchoidal to uneven
Conchoidal
Cleavage
[0001] indistinct, [1010] indistinct
{001} Good
Mohs Hardness
55-5.5
2
10
👆🏻
Chemical Composition
Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)