Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
{110} Perfect, {???} Distinct, {???} Distinct
Perfect on [10 1 1] three directions with angle of 74° 55
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
CaCO 3Ulrich Henn and Claudio C.