ALL meanings of oligoclase
ol·i·go·clase
O o - noun oligoclase a kind of plagioclase feldspar occurring commonly in white crystals, sometimes shaded with gray, green, or red. 1
- noun oligoclase A feldspar mineral common in siliceous igneous rocks, consisting of a sodium-rich plagioclase (with more calcium than albite). 1
- noun oligoclase a white, bluish, or reddish-yellow feldspar mineral of the plagioclase series, consisting of aluminium silicates of sodium and calcium. Formula: NaAlSi3O8.CaAl2Si2O8 0
- noun oligoclase a plagioclase feldspar whose composition corresponds to 70 to 90 percent albite 0