Tenacity
-
-
Solubility
insoluble
-
Durability
-
-
Specific Gravity
2.362.52-2.60
1
7.18
👆🏻
Fracture
Uneven, Subconchoidal, Fibrous
Uneven, Conchoidal
Cleavage
[110] perfect, [101] good, [010] distinct
{0001} Imperfect, {1120} Imperfect
Mohs Hardness
3.5-45.5-6
2
10
👆🏻
Chemical Composition
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references