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quartz porphyry


Identification code: 300011238
Español: pórfido cuarcífero | Català: pòrfir de quars




Narrower term/s

Alternative term/s

  • porphyry, quartz
  • quartz-porphyry

Anotations

Scope note:

A porphyritic rhyolite containing phenocrysts of quartz and alkali feldspar in a microcrystalline or cryptocrystalline groundmass.

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