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OLIGOCLASE
plagioclase, oligoclase
(noun) any of a series of triclinic feldspars that form rocks
Source: WordNet® 3.1
Etymology
Noun
oligoclase (usually uncountable, plural oligoclases)
(mineral) A plagioclase feldspar, the second member of the Albite-Anorthite solid solution series. Primarily found as small crystals in impure marble. Oligoclase contains a small amount of calcium substituting for some of the sodium in its formula. Oligoclase with reddish-golden inclusions found in Norway and Canada is called sunstone.
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Source: Wiktionary
Ol"i*go*clase, n. Etym: [Oligo- + Gr. (Min.)
Definition: A triclinic soda-lime feldspar. See Feldspar.
Source: Webster’s Unabridged Dictionary 1913 Edition
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24 June 2025
CLINGFISH
(noun) very small (to 3 inches) flattened marine fish with a sucking disc on the abdomen for clinging to rocks etc.
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