Category:Siderite concretions in Poland
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Media in category "Siderite concretions in Poland"
The following 9 files are in this category, out of 9 total.
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Konkrecja syderytowa z amonitem i małżami. Kopalnia iłów jury, Gnaszyn, Wienerberger.jpg 3,189 × 2,124; 5.99 MB
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Konkrecje syderytowe. Kopalnia iłów jury, Gnaszyn, Wienerberger.jpg 2,661 × 1,678; 4.45 MB