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English
Image:Feldspar_1659.jpg|thumb|right|180px|Feldspar
Etymology
Feld, field (from Middle High German veld, from Old High German feld) + Spath, spar
Noun
feldspar
- mineralogy A large group of rock-forming minerals that, together, make up about 60% of the earth's outer crust. The feldspars are all aluminum silicates of the alkali metals sodium, potassium, calcium and barium. Feldspars are the principal constituents of igneous and plutonic rocks.
Related terms
feldspathic
Translations
Finnish: maasälpä
mid
Spanish: feldespato m
See also
albite
bytownite
andesine
anorthite
granite
labradorite
microcline
mineral
oligoclase
orthoclase
rock
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