A sodium-rich plagioclase and an alkali feldspar, typically white or colourless, occurring widely in granitic rocks and also as prismatic…

Mineralogy. A variety of albite occurring as large elongated white crystals, often twinned. Frequently attributive.

A hard, fine-grained rock, rich in albite, resulting from contact metamorphism of shales, slates, etc.

A sodic plagioclase in the albite–oligoclase range of composition with a blue or bluish-white opalescence.

a feldspar similar to albite but with sodium partly replaced by potassium; anorthoclase.

A variety of albite, occurring in tabular twin crystals, of a yellowish-white or reddish colour.

A granular rock consisting largely of albite.