feldspar

English dictionary entry

Meanings

noun

Any of a large group of rock-forming aluminosilicate minerals containing potassium, sodium, or calcium that, together, make up about 60% of the Earth's outer crust.

/ˈfɛldˌspɑɹ/ /ˈfɛldspɑː/ LL-Q1860 (eng)-Vealhurl-feldspar.wav

feldspar feldspars felspar

Partial calque of German Feldspat, formed from Feld (“field”) + Spat (“spar”), the second element replaced with the English cognate spar.

feldspathic feldspathoid feldspathose albite bytownite andesine anorthite granite labradorite microcline mineral oligoclase orthoclase rock

alkali feldspar feldsparlike felsic glassy feldspar K-feldspar potash-feldspar potassium feldspar

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