| Pronunciation: | 'moon`stown | ||
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| Definition: | [n] a transparent or translucent gemstone with a pearly luster; some specimens are orthoclase feldspar and others are plagioclase feldspar | ||
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| See Also: | feldspar, felspar, transparent gem | ||
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| Definition: | \Moon"stone`\, n. (Min.) A nearly pellucid variety of feldspar, showing pearly or opaline reflections from within. It is used as a gem. The best specimens come from Ceylon. | ||
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