pitchstone

[ pich-stohn ]

/ ˈpɪtʃˌstoʊn /

a glassy volcanic rock having a resinous luster and resembling hardened pitch.

Origin of pitchstone

1775–85; translation of German Pechstein. See pitch², stone

pitchman, pitchometer, pitchout, pitchpole, pitchpot, pitchstone, pitchy, piteous, pitesti, pitfall, pith

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 |Owen Wister
The lavas are curious from abounding in, or rather being in parts composed of pitchstone.

More Letters of Charles Darwin |Charles Darwin
I was glad enough, though, when we struck the parklike levels of the Pitchstone plateau as the scene of our further progression.

Pony Tracks |Frederic Remington
Such media are the volcanic rocks when they are rapidly cooled, producing various kinds of pitchstone, obsidian, &c.

Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 |Various

The walls, or banks, of the channel have been denuded away, thus converting the pitchstone casting into a projecting wall of rock.

Volcanoes: Past and Present |Edward Hull

pitchstone

/ (ˈpɪtʃˌstəʊn) /

a dark glassy acid volcanic rock similar in composition to granite, usually intruded as dykes, sills, etc

C18: translation of German Pechstein