Category:Gold ore (auriferous altered rhyolite) in Colorado
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Media in category "Gold ore (auriferous altered rhyolite) in Colorado"
The following 13 files are in this category, out of 13 total.
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Gold ore (Camp Bird Vein, Tertiary; Camp Bird Mine, San Juan Mountains, Colorado, USA) 1.jpg 4,454 × 3,599; 14.06 MB
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Gold ore (Camp Bird Vein, Tertiary; Camp Bird Mine, San Juan Mountains, Colorado, USA) 3.jpg 4,000 × 2,138; 5.22 MB