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https://geologyscience.com/gemstones/rare-unique-gemstones/mohawkite/ Mohawkite : Properties, Formation, Uses - Geology Science Sep 29, 2026 - Mohawkite is a rare copper-based mineral that was first discovered in the Mohawk Mine of Keweenaw County, Michigan, USA, hence its name. It is a complex... mohawkitepropertiesformationusesgeology