Definition of pachnolite in English:

pachnolite

noun

Mineralogy
  • A hydrated fluoride of aluminium, calcium, and sodium, NaCaAlF₆·H₂O, occurring as small white monoclinic crystals on cryolite.

Origin

Mid 19th century; earliest use found in American Journal of Science. From German Pachnolith from ancient Greek πάχνη hoar frost + German -lith.

Pronunciation

pachnolite

/ˈpaknə(ʊ)lʌɪt/