Category:Granite samples from South Dakota
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Media in category "Granite samples from South Dakota"
The following 2 files are in this category, out of 2 total.
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Pegmatitic granite (Precambrian; Black Hills, South Dakota, USA) 1 (32139287362).jpg 2,510 × 2,120; 3.76 MB
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Pegmatitic granite (Precambrian; Black Hills, South Dakota, USA) 4 (32139286502).jpg 2,731 × 2,264; 4.21 MB