pitchstone

English

Etymology

From pitch +‎ stone.

Noun

pitchstone (usually uncountable, plural pitchstones)

  1. (geology) a natural glass, rich in microscopic crystallites, formed by the rapid cooling of lava or magma

Translations

See also

Anagrams

This article is issued from Wiktionary. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.