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Minerals In Black Sands Not Magnetic

Jul 29 2019nbsp018332Magnetite or lodestone is a common accessory mineral in coarsegrained igneous rocks and metamorphic rocks It may be grayblack or have a rusty coating Crystals are common with striated faces shaped in octahedrons or dodecahedrons Look for a black streak and a strong attraction to a magnet Characteristics Metallic luster hardness of 6

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