albite

noun Mineralogy.

1. the sodium end member of the plagioclase feldspar group, light-colored and found in alkalic igneous rocks.

noun

1. a colourless, milky-white, yellow, pink, green, or black mineral of the feldspar group and plagioclase series, found in igneous sedimentary and metamorphic rocks. It is used in the manufacture of glass and ceramics. Composition: sodium aluminium silicate. Formula: NaALSi 3 O 8 . Crystal structure: triclinic

1. A clear to milky white triclinic mineral of the plagioclase group. Albite is common in igneous rocks, especially granite, and in metamorphic rocks that formed at low temperatures. Chemical formula: NaAlSi3O8.