1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
5.85-6.152.57-2.66
1
7.18
1.8 Fracture
Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Subconchoidal, Conchoidal, Brittle
1.9 Cleavage
Fair in four directions forming octahedrons
Fair on {100}, poor on {001} and {010}
1.10 Mohs Hardness
1.12 Chemical Composition
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mg2Al4Si5O18