Definition of pyroaurite in English:

pyroaurite

noun

Mineralogy
  • A rare mineral occurring mainly in serpentinites and hydrothermal vein deposits as yellowish or greenish tabular or platy crystals; (also attributive) designating a group of minerals having a similar crystal structure.

Origin

Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From pyro- + classical Latin aurum gold + -ite, after Swedish pyroaurit, so called because it turns golden-yellow on moderate heating.