chalcopyrite sentence examples

• In the bay complex narrow zones of bleached rock are rich in calcite, chlorite and pyrite and contain minor chalcopyrite and pyrrhotite.
• In the bay complex narrow zones of bleached rock are rich in calcite, chlorite and pyrite and contain minor chalcopyrite and pyrrhotite.
• Chalcopyrite ores were removed from the known extent of the early workings.
• In its natural state a metal such as copper is found combined with other elements in the mineral chalcopyrite.
• More surprisingly, the metallic yellow mineral chalcopyrite, often known as fools ' gold, also has a black streak.

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