orthoclase
An inscription on a coin indicating the year in which the coin was either produced or issued.
present participle of spooner
(mineralogy) Potassium aluminum silicate, KAlSi₃O₈, a common feldspar of igneous, plutonic, and metamorphic rocks. Orthoclase is the main feldspar of pegmatite occurrences, where it is most commonly flesh-colored. Orthoclase is used in the ceramic and glass industries and as a decorative gravel.
plural of officious intermeddler
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