Category:Porphyry quarries
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This category has the following 4 subcategories, out of 4 total.
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Media in category "Porphyry quarries"
The following 5 files are in this category, out of 5 total.
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Guadalix de la Sierra 1988 12.jpg 701 × 1,050; 863 KB
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Krebsbach-Wasserfall im Porphyrwerk Detzeln in Ühlingen-Birkendorf.jpg 4,849 × 3,233; 7.02 MB
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Krebsbach-Wasserfall in Ühlingen-Birkendorf.jpg 5,304 × 7,952; 13.19 MB
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Porphyr Ritten-110.JPG 3,456 × 4,608; 5.01 MB
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Porphyrwerk Detzeln in Ühlingen-Birkendorf.jpg 14,306 × 4,140; 25.28 MB