feldspar

noun feld·spar \ ˈfel(d)-ˌspär \

Definition of feldspar

:any of a group of crystalline minerals that consist of aluminum silicates with either potassium, sodium, calcium, or barium and that are an essential constituent of nearly all crystalline rocks

Recent Examples of feldspar from the Web

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Origin and Etymology of feldspar

modification of obsolete German Feldspath (now Feldspat), from German Feld field + obsolete German Spath (now Spat) spar

Other Mineralogy Terms


FELDSPAR Defined for English Language Learners

feldspar

noun

Definition of feldspar for English Language Learners

  • : a very common type of mineral



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