geffroyite
English edit
Etymology edit
Geffroyite was named in honor of Jaques Geffroy, a metallurgist for the French Atomic Energy Commission.
geffroy + -ite
Noun edit
geffroyite
- (mineralogy) An isometric-hexoctahedral bronze brown mineral containing copper, iron, selenium, silver, and sulfur.
References edit
- David Barthelmy (1997–2024) “Geffroyite”, in Webmineral Mineralogy Database.