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Copper Ore Mineral And Quarries

2 the nonfuel mineral resources of pennsylvania what are mineral resources 3 at the end of the twentieth century, approximately 700 active quarries and mines dotted the landscape of 64 of penn- sylvanias 67 counties.

Mineral Specimens From Michigan Gallery Mw

Ex.Seaman mineral museum 4.3 x 3.1 x 1.8 cm 125.6455 copper crystals.Central mine, keweenaw co., michigan 7.9 x 4.4 x 0.7 cm 85.6445 copper included in datolite, copper crystals.Quincey mine, hancock and francklin townships, houghton co., michigan 5 x 3.2 x 2 cm 35.6399 copper, quartz, epidote, copper included in quartz.

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