Definition of atelestite in English:

atelestite

(also atelesite)

noun

Mineralogy
  • A rare mineral found in deposits of bismuth- and arsenic-bearing minerals and typically occurring as yellowish or green botryoidal aggregates.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From German Atelestit from ancient Greek ἀτέλεστος without end, unaccomplished + German -it, with remodelling of the ending after -ite; perhaps so called with allusion to the unknown composition of the mineral when it was first described.

Pronunciation

atelestite

/əˈtɛləstʌɪt//atəˈlɛstʌɪt/