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Here are some dendritic Native Copper inclusions in Gypsum from the Mission Pit Mine, Pima County, Arizona. The field of veiw is about 3/4" (1.9cm) (Author: Jim Prentiss)

Here are some dendritic Native Copper inclusions in Gypsum from the Mission Pit Mine, Pima County, Arizona. The field of veiw is about 3/4" (1.9cm) (Author: Jim Prentiss)

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