Definition of allemontite in English:

allemontite

noun

Mineralogy
  • A greyish-white mineral containing antimony and arsenic, later regarded as identical with or containing stibarsen.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From scientific Latin Allemontites (J. Fröbel 1837, or earlier) from Allemont, variant of Allemond, the name of a village in the Dauphiné, France (department of Isère), near which the substance naturally occurs + -ites.

Pronunciation

allemontite

/aləˈmɒntʌɪt/