porphyroclast

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noun

A clast or mineral fragment in a metamorphic rock, surrounded by a groundmass of finer-grained crystals.

Scrabble 25
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Meanings

nounporphyroclast (plural porphyroclasts)

plural porphyroclasts

  1. A clast or mineral fragment in a metamorphic rock, surrounded by a groundmass of finer-grained crystals.
Cite this entry
APA

porphyroclast. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/porphyroclast

MLA

“porphyroclast.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/porphyroclast. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “porphyroclast,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/porphyroclast.

Source: porphyroclast on Wiktionary, CC BY-SA 4.0.