UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
Perfect on {110} at 56° and 124°; partings on {010} and {100}
Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}
Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.