Library / English Dictionary

    FELDSPAR

    Pronunciation (US): Play  (GB): Play

     I. (noun) 

    Sense 1

    Meaning:

    Any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or bariumplay

    Synonyms:

    feldspar; felspar

    Classified under:

    Nouns denoting substances

    Hypernyms ("feldspar" is a kind of...):

    spar (any of various nonmetallic minerals (calcite or feldspar) that are light in color and transparent or translucent and cleavable)

    Meronyms (substance of "feldspar"):

    atomic number 14; Si; silicon (a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors)

    Hyponyms (each of the following is a kind of "feldspar"):

    orthoclase (a white or colored monoclinic feldspar)

    oligoclase; plagioclase (any of a series of triclinic feldspars that form rocks)

    moonstone (a transparent or translucent gemstone with a pearly luster; some specimens are orthoclase feldspar and others are plagioclase feldspar)

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