ZME Science on MSN4mon
Why does nature keep making perfect cubical pyrite crystals?
Pyrite, chemically known as iron sulfide (FeS₂), is one of Earth’s most common sulfide minerals. Miners and prospectors have ...
Natural History Museum%2c London1y
Ore mineralogy laboratory
A complex intergrowth of kiddcreekite, colusite, tennantite, galena, native tellurium, chalcopyrite, with a trace of altaite in pyrite. This image was used on promotional material for the 2nd edition ...