Tenacity
-
-
Solubility
insoluble
-
Durability
-
-
Specific Gravity
2.363.79-3.94
1
7.18
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Fracture
Uneven, Subconchoidal, Fibrous
Lamellar, Splintery
Cleavage
[110] perfect, [101] good, [010] distinct
{100} Good, {001} Good, {010} Poor
Mohs Hardness
3.5-44
2
10
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Chemical Composition
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
FeAs