geffroyite

Questions

What does geffroyite mean?

An isometric-hexoctahedral bronze brown mineral containing copper, iron, selenium, silver, and sulfur.

Where does geffroyite come from?

Geffroyite was named in honor of Jaques Geffroy, a metallurgist for the French Atomic Energy Commission. geffroy + -ite

How to pronounce geffroyite

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