euclase

[ yoo-kleys, -kleyz ]

noun

1. a rare green or blue mineral, beryllium aluminum silicate, BeAlSiO 4 (OH), occurring in prismatic crystals.

Word History and Origins

Origin of euclase¹

From French, dating back to 1795–1805; eu-, -clase

Example Sentences

Some other minerals in which it occurs are phenakite, euclase, and chrysoberyl.

From Project Gutenberg