Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.85-6.153.04-3.17
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
Fair in four directions forming octahedrons
{001} Indistinct, {???} Indistinct
Mohs Hardness
3.5-45.5
2
10
👆🏻
Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references