How To Use chalcopyrite In A Sentence
- Copper is known to be taken into solution as copper sulphate at the surface, and to be redeposited as chalcocite where these sulphate solutions come in contact with chalcopyrite or pyrite below. The Economic Aspect of Geology
- Some older analyses show the presence of small amounts of NJ, Co, and Cu, but these are almost invariably found to reflect the presence of tiny exsolved grains of such minerals as chalcopyrite and pentlandite.
- The assemblage present included quartz, chalcopyrite, pyrite, sphalerite, magnetite, and hematite.
- A set of specimens was exhibited by the Ellenville Zinc Company, consisting of strikingly beautiful crystalline masses of quartz galina, sphalerite and chalcopyrite and specimens of the rare mineral, brookite. New York at the Louisiana Purchase Exposition, St. Louis 1904 Report of the New York State Commission
- Associated minerals in the high-grade veins are calcite, ‘smaltite,’ nicoline, bismuth, and lesser pyrargyrite, proustite, acanthite, millerite, and chalcopyrite.
- It was formerly supposed that most of the chalcocite was of this origin; but as chalcocite is found in important amounts with enargite and chalcopyrite to great depths (now 3,500 feet), where the veins are still rich and strong, it begins to appear that much of the chalcocite is of primary origin. The Economic Aspect of Geology
- Pseudomorphs of marcasite, chalcopyrite, pyrite, arsenopyrite, pyrargyrite, magnetite, and quartz after pyrrhotite have been reported.
- Vein minerals are barite, calcite, chalcopyrite, kaolinite, pyrite, sphalerite, and wurtzite.
- Vein minerals are barite, calcite, chalcopyrite, galena, pyrite, and sphalerite.
- The ore bodies consist of masses of chloritic and sericitic schists, intermixed with pyrite and chalcopyrite. North Carolina and its Resources.