Graywacke vs Greywacke - What's the difference?

graywacke | greywacke | Alternative forms |

Graywacke is an alternative form of greywacke.


As nouns the difference between graywacke and greywacke

is that graywacke is while greywacke is (geology) a hard dark sandstone with poorly sorted angular grains of quartz, feldspar, and small rock fragments in a compact, clay-fine matrix.

graywacke

English

Noun

  • * {{quote-news, year=2007, date=December 12, author=Anthony Depalma, title=An Island in the Hudson, Plundered in Search of Indian Artifacts, work=New York Times citation
  • , passage=Hundreds of projectile points and ceramic pieces from the island are stored in the State Museum in Albany, and archaeologists found human bones at a burial site from the early Woodland period at the back of the rock shelter, a 45-foot-long overhang of graywacke , a local sandstone. }}

    greywacke

    Alternative forms

    * graywacke

    Noun

  • (geology) A hard dark sandstone with poorly sorted angular grains of quartz, feldspar, and small rock fragments in a compact, clay-fine matrix.
  • *2004 , (Richard Fortey), The Earth , Folio Society 2011, p. 177:
  • *:Endless bleak, rounded hills composed of shales and ribs of tough ‘greywackes ’ make up the Southern Uplands – all of such rocks were originally deposited under marine conditions.
  • Derived terms

    * metagreywacke, metagraywacke