another term for chalcopyrite.
More example sentences
- Yet on his recovery, Gunnar realises that they are valuable copper pyrites, in sufficient quantity to restore the house's fortunes.
- It is very difficult to separate iron pyrites, copper pyrites, mispickel, or sulphate of barium, from silver ores.
- Both iron and copper pyrites contain sulphur and the Marquis with his usual enthusiasm decided to build a sulphuric acid plant at the site.