pitchstone

/pich-stohn/US // ˈpɪtʃˌstoʊn //UK // (ˈpɪtʃˌstəʊn) //

沥青石,沥青岩,黝黑的石头,黝黑的石块

Definitions

n.名词 noun

1
- : a glassy volcanic rock having a resinous luster and resembling hardened pitch.

I have brought from that locality a single specimen of pitchstone, perfectly resinous, bleak and shining.
The lavas comprise dark pitchstone, resembling that at Kirk Yetholm, and porphyritic and amygdaloidal andesites and basalts.
But this hyeh Pitchstone hole, if Willomene had went down into that—well, I'll tell yu', that you may judge.
And she mighty near rolled off down into Pitchstone Canyon, comin' up by the cut-off trail.
The walls, or banks, of the channel have been denuded away, thus converting the pitchstone casting into a projecting wall of rock.