graphic granite

American  

noun

1. a pegmatite that has crystals of gray quartz imbedded in white or pink microcline in such a manner that they resemble cuneiform writing.

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Etymology

Origin of graphic granite

First recorded in 1830–40

Example Sentences

Graphic granite, a variety of granite with markings like Hebrew characters.

From Project Gutenberg

"The granite of Cape Warrender differs considerably from that of North Somerset; the former being a graphic granite, composed of grey quartz and white felspar, the quartz predominating; while the latter, or North Somerset granite, is composed of grey quartz, red felspar, and green chloritic mica, the latter in large flakes; both the granite and gneiss of North Somerset are remarkable for their soapy feel."

From Project Gutenberg

This variety, however, though occasionally found in rolled boulders in the neighborhood of Portsoy, is not the graphic granite for which the locality is famous, and which occurs in a vein in the mica schist of the eminence I was now traversing, about a mile to the east of the town.

From Project Gutenberg

The rain again returned as I was engaged in examining the graphic granite of the Portsoy vein; the breeze from the sea heightened into a gale, that soon fringed the coast with a broad border of foam; and I entered the town, which looked but indifferently well in its gray dishabille of haze and spray, tolerably wet and worn, with but the prospect before me of being weather-bound for the rest of the day.

From Project Gutenberg

The various attempts made to unriddle the real history of graphic granite are, however, scarce less curious than the speculations connected with what may be termed its romance.

From Project Gutenberg