• Chambers's Twentieth Century Dictionary
    • ns Quartz-rock a common rock, usually white, gray, or rusty in colour, and composed of an aggregate of quartz-grains welded together
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Chambers's Twentieth Century Dictionary
Ger. quarz.


In literature:

There is no flint to make celts, but quartz and rocks having a slaty cleavage are abundant.
"The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume II (of 2), 1869-1873" by David Livingstone
The tiny, sea-broken pebbles were ordinary quartz and granite rock.
"Operation: Outer Space" by William Fitzgerald Jenkins
Quite small mineral pigment mortar of quartz rock.
"Illustrated Catalogue Of The Collections Obtained From The Indians Of New Mexico And Arizona In 1879" by James Stevenson
The name "quartz mining" seemed misleading, for the wash from the crushed rock was distinctly blue.
"Forty-one Thieves" by Angelo Hall
There is very little quartz mining, or crushing of rocks, as is practised in many sections of California.
"Klondike Nuggets" by E. S. Ellis
The bright orb sinks behind us, and the quartz rock saddens into a sombre hue.
"The Scalp Hunters" by Mayne Reid
The rock, which had been sandstone hitherto, changes its nature at the second cataract to granite and quartz.
"The World's Greatest Books, Volume 19" by Various
The chief sand-forming rocks are quartz and granite.
"Ontario Teachers' Manuals: Nature Study" by Ontario Ministry of Education
What makes it more strange is that it should be in a vein of fine quartz rock.
"The Crown of Wild Olive" by John Ruskin
They are nothing but quartz rock.
"When Life Was Young" by C. A. Stephens
The old mine was situated at the base of a precipitous cliff of quartz rock.
"Seven and Nine years Among the Camanches and Apaches" by Edwin Eastman
The weathering of a highly acid igneous rock with much quartz produces a residual soil with much quartz.
"The Economic Aspect of Geology" by C. K. Leith
Among this moss there were several bits of whitish rock which seemed to be quartz.
"The Trail of a Sourdough" by May Kellogg Sullivan
Besides quartz-pebbles, the deposit contains others of slate, grit, and volcanic rock.
"Volcanoes: Past and Present" by Edward Hull
The rock of Fanet is almost entirely quartzite, a metamorphosed sandstone, often pure and glittering quartz.
"Climbing in The British Isles, Vol. II" by W. P. Haskett Smith
In non-alluvial workings the gold is embedded in rock of some kind, such as that called quartz.
"Marvels of Scientific Invention" by Thomas W. Corbin
It is composed of angular fragments of rock, often large, many of quartz, with no signs of stratification.
"Cornwall" by Sabine Baring-Gould
The gold was mixed with dirt and quartz rock.
"A Trip to California in 1853" by Washington Bailey
The rocks are probably of quartz, i.e.
"Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 1" by Various
Cenis tunnel is through rock varying in hardness, and veined throughout with quartz.
"Facts and Figures Concerning the Hoosac Tunnel" by John J. Piper

In poetry:

Loam-humps, he says, moles shunt
up from delved worm-haunt;
blue fur, moles have; hefting chalk-hulled flint
he with rock splits open
knobbed quartz; flayed colors ripen
rich, brown, sudden in sunlight.
"Ode For Ted" by Sylvia Plath

In news:

Here Ivan Faggins, 12, studies the properties of a quartz rock Monday morning during the camp.
Atlantic Media's Quartz aims to rock business journalism.
Could it be that one of the world's most common rock-forming minerals, quartz , will become the latest symbol of the difficulties America faces when it attempts to impose its will upon other nations.
Snow Quartz , Meteor Rock And Tolland's Highest Point.
Silestone's new volcano texture quartz surfacing has an orange-peel texture that resembles molten rock.