Category:Rock samples from Montana

Media in category "Rock samples from Montana"

The following 2 files are in this category, out of 2 total.

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  Garnet-biotite rock, Beartooth Mountains MT.jpg 2,188 × 2,192; 2.71 MB
  
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  Quartzite (Precambrian; Rock Creek Canyon, Beartooth Mountains, Montana, USA) 9.jpg 2,007 × 1,369; 1.87 MB