更多chalcopyrite例句

1. The cobalt ores at these localities occur with pyrites and chalcopyrite as bands in gneiss.
2. Both chalcocite and chalcopyrite frequently occur in silver-bearing rocks.
3. Much of the copper of commerce is made from chalcopyrite and bornite, and these ores are more difficult to work.
4. Differs from chalcopyrite by paler color and much greater hardness.
5. Copper-glance readily alters to other minerals, such as malachite, covellite, melaconite and chalcopyrite.