Category:Quartz crystal-lined cavities in flint (Vanport Flint; Nethers Flint Quarries, Ohio)
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This category has the following 3 subcategories, out of 3 total.
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Media in category "Quartz crystal-lined cavities in flint (Vanport Flint; Nethers Flint Quarries, Ohio)"
The following 15 files are in this category, out of 15 total.