[ˈfɛl(d)spɑː], (Noun)

Definitions:
- an abundant rock-forming mineral typically occurring as colourless or pale-coloured crystals and consisting of aluminosilicates of potassium, sodium, and calcium


Phrases:

Origin:
mid 18th century: alteration of German Feldspat, Feldspath, from Feld ‘field’ + Spat, Spath ‘spar’ (see spar). The form felspar is by mistaken association with German Fels ‘rock’