Specimen ID: 5UH-7PF

Mindat locality:
15cm x 12.5cm

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Coal tonstein of Seam No. 243 (Horymír) of the Upper Silesian Basin. Only the lower intercalation contains volcanoclastic minerals and, therefore, could be considered as a coal tonstein. Upper intercalation is comon clay band containing just terrestrial material. Upper Carboniferous age (Serpukhovian stage). Collection of Geological pavilon of prof. F. Pošepný at VŠB-Technical University of Ostrava.
Jakub Jirásek - 2nd January 2020
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