feldspar
0 synonyms and 0 antonyms for feldspar, grouped by meaning and by how common each one is.
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.
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Etymology
Partial calque of German Feldspat, formed from Feld (“field”) + Spat (“spar”), the second element replaced with the English cognate spar.
Full origin of feldspar →