pollucite
noun
Forms pollucites
- noun (mineralogy) A colorless transparent mineral of the zeolite family consisting of hydrous cesium aluminum silicate and occurring massive or crystallizing in cubes.
Etymology
From Pollux + -ite, named after Pollux, the twin of Castor, as it is often found associated with castorite (now petalite).
Webster’s 1913
- noun A colorless transparent mineral, resembling quartz, occurring with castor or castorite on the island of Elba. It is a silicate of alumina and cæsia. Called also pollux.
Etymology [See Pollux, and 4th Castor.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “pollucite”, CC BY-SA 4.0. Details