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Plagioclase feldspar pronunciation with meanings, synonyms, antonyms, translations, sentences and more
noun. pla· gio· clase ˈplā-j (ē-)ə-ˌklās. ˈpla-, -ˌklāz. : a triclinic feldspar. especially : one having calcium or sodium in its composition. Examples of plagioclase in a Sentence.
Plagioclase ( / ˈplædʒ ( i) əˌkleɪs, ˈpleɪdʒ -, - ˌkleɪz / PLAJ- (ee)-ə-klayss, PLAYJ-, -klayz) [4] is a series of tectosilicate (framework silicate) minerals within the feldspar group.
- 6–6.5
- Pinacoidal (1), (same H-M symbol)
- Biaxial (+) albite, biaxial (-) anorthite
- Triclinic
plagioclase (noun): any of a series of triclinic feldspars that form rocks. Synonyms: oligoclase
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