1 Physical Properties
1.1 Tenacity
1.2 Solubility
Soluble
Insoluble in acids
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Uneven, Brittle, Metallic
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Indistinct on {011}
{110} good, 100 moderate, parting on {092} and {011}
1.7 Mohs Hardness
1.8 Chemical Composition
CuFeS 2Anthony et al , Handbook of mineralogy (2001)
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)