Microlite \Mi"cro*lite\, n. [Micro- + -lite.] (Min.)
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1. A rare mineral of resinous luster and high specific
gravity. It is a tantalate of calcium, and occurs in
octahedral crystals usually very minute.
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2. (Min.) A minute inclosed crystal, often observed when
minerals or rocks are examined in thin sections under the
microscope.
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