onyx : Idioms & Phrases


mexican onyx

  • noun a hard compact kind of calcite
    oriental alabaster; alabaster; Mexican onyx.
WordNet

Onyx marble

  • noun a hard compact kind of calcite
    oriental alabaster; alabaster; Mexican onyx.
WordNet
  • a banded variety of marble or calcium carbonate resembling onyx. It is obtained from Mexico.
Webster 1913