White, Yellow, Pale blue, Brittle, Uneven
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, Brittle
Perfect on {100} and {010}, imperfect on {101}
{110} Perfect, {???} Distinct, {???} Distinct
Not Available
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)