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Meaning Of Mica
n.
The name of a group of minerals characterized by highly
perfect cleavage, so that they readily separate into very thin leaves,
more or less elastic. They differ widely in composition, and vary in
color from pale brown or yellow to green or black. The transparent
forms are used in lanterns, the doors of stoves, etc., being popularly
called isinglass. Formerly called also cat-silver, and glimmer.