Tenacity
-
Brittle
Solubility
insoluble
-
Durability
-
-
Specific Gravity
2.366.50-7.00
1
7.18
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Fracture
Uneven, Subconchoidal, Fibrous
Irregular, Conchoidal
Cleavage
[110] perfect, [101] good, [010] distinct
On {011}, distinct; on {001}, {013}, indistinct
Mohs Hardness
3.5-43
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
PbMoO 4Walter Schumann , Gemstones of the world (2001)