adularia

Meaning

A variety of orthoclase feldspar found as colorless to white prismatic crystals in cavities in metamorphic rocks. Some specimens reflect a bluish sheen along crystal faces. This phenomenon is called adularescence, and adularia with this property is called moonstone. (See sanidine).

Synonyms

adular

valencianite

Translations

Etymology

Named for the type locality at Adular, Switzerland.

Notes

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