Category:Rock anhydrite (St. Louis Limestone, Middle Mississippian; subsurface gypsum mine in Martin County, Indiana)

Media in category "Rock anhydrite (St. Louis Limestone, Middle Mississippian; subsurface gypsum mine in Martin County, Indiana)"

The following 4 files are in this category, out of 4 total.

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  Rock anhydrite (St. Louis Limestone, Middle Mississippian; subsurface gypsum mine in Martin County, Indiana, USA) (30048366846).jpg 1,678 × 3,131; 3.03 MB
  
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  Rock anhydrite (St. Louis Limestone, Middle Mississippian; subsurface gypsum mine in Martin County, Indiana, USA) 1 (30048377596).jpg 1,582 × 2,563; 2.34 MB
  
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  Rock anhydrite (St. Louis Limestone, Middle Mississippian; subsurface gypsum mine in Martin County, Indiana, USA) 2 (29999233781).jpg 1,704 × 2,782; 3.17 MB
  
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  Rock anhydrite (St. Louis Limestone, Middle Mississippian; subsurface gypsum mine in Martin County, Indiana, USA) 3 (29455316853).jpg 1,392 × 2,593; 2.01 MB