The result was an intermediate substance, neither glass nor whinstone—a sort of slag.
It is of whinstone, and "appears not to have had the chisel, or any inscription upon it."
The sight that was presented to him, would have turned a hero less brave into whinstone.
Think what these black bare lumps of whinstone are, and what they do.
It is there traversed by a dike of whinstone, of which that range is wholly composed.
The hills, at the foot of which we are encamped, are composed of whinstone (basalt).
And there were charges of thefts of a whinstone, a knife, a razor, against certain incorrigible purloiners.
In like manner granite is a composition which graduates into porphyry; but porphyry is only whinstone of a harder species.
The roof was formed of large flat slabs, which I was told were whinstone (basalt).
You see I know too much, and I haven't your whinstone nerve and total lack of imagination.'