1 Physical Properties
1.1 Tenacity
Not Available
Very brittle
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
Conchoidal, Brittle, Conchoidal
1.6 Cleavage
{100} Good, {010} Good, {001} Good
{010} perfect, {110} distinct, {100} in traces
1.7 Mohs Hardness
1.8 Chemical Composition
CoAsSAnthony et al , Handbook of mineralogy (2001)
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references