- a glassy volcanic rock having a resinous luster and resembling hardened pitch.
Origin of pitchstone
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for pitchstone
But there ain't no crawlin' out o' Pitchstone Canyon, they say.The Jimmyjohn Boss and Other Stories
I have brought from that locality a single specimen of pitchstone, perfectly resinous, bleak and shining.
The lavas are curious from abounding in, or rather being in parts composed of pitchstone.
I strongly suspect the underlying granite has altered such beds into this pitchstone.
I had never seen him look as he did now, not even in Pitchstone Canyon when we came upon the bodies of Hank and his wife.The Virginian
- a dark glassy acid volcanic rock similar in composition to granite, usually intruded as dykes, sills, etc
C18: translation of German Pechstein