Uneven, Conchoidal, Brittle, Metallic, ConchoidalArthur Thomas, Gemstones (2009)
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
Ca 3Cr 2(SiO 4) 3Ulrich Henn and Claudio C.
CoAsSAnthony et al , Handbook of mineralogy (2001)