Pyroclast definitions

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Pyroclast

Pyroclast logo #21217In mineralogy, a pyroclast is a fragment of volcanic rock scattered by an explosive eruption.
Found on http://www.probertencyclopaedia.com/browse/HP.HTM

Pyroclast

Pyroclast logo #20501Fragment of volcanic rock scattered by explosive eruption
Found on https://www.encyclo.co.uk/local/20501
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