Sericite, Mt Mansfield, NY Sericite is the name given to very fine, ragged grains and aggregates of white micas, muscovite, illite, or paragonite.

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Keywords: -grade, aggregate, aggregates, alteration, aluminum, cleavage, estrie, fine-grained, foliated, group, hydrothermal, illite, luster, metamorphism, mica, micas, mineral, muscovite, paragonite, pelitic, phyllite, phyllosilicate, planes, potassium, quebec, rock, rocks, schistosity, sericite, sericitization, silicate, silky, specimen, texture, white