Hard rock

Usage examples of quartz.

The best-known locality is Fronolen near Tremadoc in North Wales, where crystals of the thin tabular habit occur with crystallized quartz, albite and anatase on the walls of crevices in diabase.

Miss Potton turned red and pale and pink, and blotchy combinations of all three, and finally settled on the mousseline de soie, for which Lydia then bought a pair of white satin slippers, kid gloves, and a thin gold chain with a pendant of rose quartz and earrings to match.

She dropped the poisonous monkshood rootstock and leaves into her burner, then took out her rose quartz.

It was shortly after this boom that the gravel surrounding the rich patch became very gravelly indeed, and it was determined that we should buy a small battery and begin to crush the quartz from which the gold was supposed to flow in a Pactolian stream.

There were garnet-red cherries, peridot grapes, apples like great rubies streaked with gold and amber, amethyst blueberries, strawberries glowing like pink charcoal, yellow pears of topaz, lucid gooseberries of translucent green quartz, quinces still on their twigs, melons, pomegranates, polished damsons, figs like blushing drops of jade.

Back of the gold-bearing quartz lies an enormous deposit of altered peridotite, which contains diamonds, in the search for which it evidently became necessary to extend one of the shafts to the opposite side of the mountain, possibly for purposes of ventilation.

Quartz and rock crystal, suffused with Plattnerite, glimmered about the framework, giving the whole a sense of unreality and skewness.

They worked by measuring a certain shear tension in a quartz bar doped with Plattnerite, a tension induced by the twisting effects of time travel.

The staple material, porphyritic trap, shows scatters of quartz and huge veins, mostly trending north-south: large trenches made, according to the guides, by the ancients, and small cairns or stone piles, modern work, were also pointed out to us.

To clear out the quartz would disrupt patterned energies, with the recoiling effects of unsanctioned release rewritten in her hapless flesh.

If the scorifier at the end of an operation is more than usually corroded, the borax should be replaced in subsequent assays on similar ores by powdered glass or quartz.

Dahome, so I should propose for Midian, now spoiled and wasted by the Wild Man, a broken handmill of basalt upon a pile of spalled Negro quartz.

Meanwhile the caravan continued its course down the broad smooth Wady Ruways, on whose left side was a large atelier, with broken walls and spalled quartz of the Negro variety.

Yet about the tank we lit upon large scatters of spalled quartz, which, according to the Baliyy, is brought from the neighbouring mountains.

This new thermoluminescence method can aid in determining the age of limestone and other rocks, such as dolomite, quartz, fluorite, and the feldspars, which are highly thermoluminescent.