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词汇 quartz porphyry
释义

Definition of quartz porphyry in English:

quartz porphyry

noun
Geology
  • Porphyritic rock consisting of phenocrysts of quartz and alkali feldspar (usually orthoclase) embedded in a microcrystalline or cryptocrystalline groundmass; a rock of this kind.

Origin

Late 18th century. After German quarziger Porphyr.

Definition of quartz porphyry in US English:

quartz porphyry

noun
Geology
  • Porphyritic rock consisting of phenocrysts of quartz and alkali feldspar (usually orthoclase) embedded in a microcrystalline or cryptocrystalline groundmass; a rock of this kind.

Origin

Late 18th century. After German quarziger Porphyr.

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