English Explanatory Dictionary

greywacke

English dictionary entry

Meanings

noun
  1. A hard dark sandstone with poorly sorted angular grains of quartz, feldspar, and small rock fragments in a compact, clay-fine matrix.

Pronunciation

/ˈɡɹeɪ.wak.ə/ LL-Q1860 (eng)-Vealhurl-greywacke.wav /ˈɡɹeɪ.wæk/

Word forms

greywacke greywackes graywacke

Etymology

Anglicised form of grauwacke.

Derived words

metagreywacke metagraywacke subgreywacke
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