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Specimen / coalfield / sample / anthracite / sigillaria

One of a group of specimens from the Pennsylvania coalfields and elsewhere - a sample of anthracite full of sigillaria from Ransch Creek Mines, southern Pennsylvanian coalfield

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Advanced search Search terms must be longer than two characters. Use a * as a wildcard to widen your search (for example, bagpipe* will find bagpipe, bagpipes and bagpiper).