Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven
Perfect on [10 1 1] three directions with angle of 74° 55
{010} Perfect, {001} Distinct
CaCO 3Ulrich Henn and Claudio C.
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)