Definition of pseudomalachite in English:

pseudomalachite

noun

Mineralogy
  • A mineral resembling malachite that typically occurs as botryoidal masses and fibrous aggregates of dark green translucent crystals and is a secondary mineral found in oxidized zones of copper ore deposits.

Origin

Mid 19th century; earliest use found in Charles Shepard (1804–1886). After German Pseudomalachit.