Category:Chalcedony of the Pottsville Formation

Media in category "Chalcedony of the Pottsville Formation"

The following 6 files are in this category, out of 6 total.

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  Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 12 (31602716280).jpg 3,673 × 1,531; 4.32 MB
  
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  Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 13 (31602704560).jpg 2,361 × 1,670; 2.92 MB
  
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  Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 14 (31602695630).jpg 2,469 × 1,729; 2.99 MB
  
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  Nellie Blue Flint (Upper Mercer Flint, Middle Pennsylvanian; Nellie area, Coshocton County, Ohio, USA) 15 (31976208135).jpg 2,050 × 2,135; 2.62 MB
  
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  Quartz-lined fossil vug in flint (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 1 (33216106391).jpg 3,061 × 2,062; 4.71 MB
  
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  Quartz-lined fossil vug in flint (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 2 (33216096441).jpg 3,457 × 2,359; 5.99 MB