clinkstone

/ (ˈklɪŋkˌstəʊn) /

noun

a variety of phonolite that makes a metallic sound when struck

Example sentences from the Web for clinkstone

  • A fissile texture is occasionally assumed by clinkstone and other trap rocks, so that they have been used for roofing houses.

  • Some varieties are slaty, and are frequently mistaken for clinkstone, which they closely resemble.

    Geology |James Geikie
  • (c.) Phonolite (Clinkstone) is a trachytic rock, composed essentially of sanidine, nepheline, and augite or hornblende.