Tenacity
-
Brittle
Solubility
-
slightly water soluble and in hot hydrochloric acid
Durability
-
-
Specific Gravity
3.04-3.173.00-3.25
1
7.18
👆🏻
Fracture
Uneven
Subconchoidal, Uneven, ConchoidalWalter Schumann
Cleavage
{001} Indistinct, {???} Indistinct
Octahedral, perfect on {111}, parting on {011}
Mohs Hardness
5.54
2
10
👆🏻
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
CaF2