Tenacity
Sectile
-
Solubility
-
insoluble
Durability
-
-
Specific Gravity
3.062.36
1
7.18
👆🏻
Fracture
Sectile
Uneven, Subconchoidal, Fibrous
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
[110] perfect, [101] good, [010] distinct
Mohs Hardness
-99993.5-4
2
10
👆🏻
Chemical Composition
Co3(AsO4)2•8(H2O)
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references