Attention Teachers: Gold Rush Academic Packet

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Other Sites of Interest:
The Kennedy Gold Mine
Wildcat Mines of the Mother Lode

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chalcopyrite
A tetragonal mineral, CuFeS₂ ; brass-yellow with bluish tarnish; massive; softer than pyrite; occurs in late magmatic hydrothermal veins and secondary enrichment zones; the most important source of copper.

crosscut
A horizontal opening driven across the course of a vein or in general across the direction of the main workings. A connection from a shaft to a vein.