Library / English Dictionary

FELDSPAR

Pronunciation (US):

(GB):

 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 barium

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)

Credits