UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
Uneven, Conchoidal, Conchoidal to uneven, Brittle
{100} Good, {010} Good, {001} Good
On {10 1 1} perfect; parting on {10 1 2}