Color: | White to grayish-white, very fine crystalline powder Apple-green powder; luster pearly or greasy; feel greasy White powder. A layered, hydrated magnesium silicate Mono- or triclinic ... Pale-green to dark-green or greenish-gray; also white, silvery-white, grey, brownish; translucent; pearly, greasy or dull ... Commonly thin tabular crystals, up to 1 cm in width. Usually massive, fine-grained, compact; also as foliated or fibrous masses or in globular stellate groups |