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Showing a knee-like bend or bends. (Rutile) Geode -- A rounded rock with a cavity filled or lined with another mineral. Glassy -- A luster, slightly less bright than Adamantine. (Quartz) Globular -- Rounded habit, usually somewhat irregular. Granular -- Having a structure made up of small grains.
출처: www.osomin.com/glossary.htm
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