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fahlerzF'AHLERZ, n. Gray copper, or gray copper ore, called by Jameson tetrahedral copper pyrite. This mineral is easily broken, and its fracture usually uneven, but sometimes a little conchoidal. it is found amorphous and in regular crystals. |
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fahlerzF'AHLERZ, n. Gray copper, or gray copper ore, called by Jameson tetrahedral copper pyrite. This mineral is easily broken, and its fracture usually uneven, but sometimes a little conchoidal. it is found amorphous and in regular crystals. |