292 examples of quartz in sentences

Quartz reefs occasionally traversed the country in a north-north-east and south-south-west direction, or nearly the same as the mineral lodes at Champion Bay; but I could not find any instance in which this rock offered much to indicate the probable existence of gold, it being far surpassed in this respect by the rocks on the Upper Murchison.

This altered sandstone and also a white quartz-like rock are much used by the natives for the heads of their spears; and during this day's journey great quantities of broken stones and imperfect spear heads were noticed on the banks of the creek.

The rocks in this part of the country often contain angular fragments of the lower strata; thus the limestone includes fragments of chert and jasper, and the sandstone pieces of limestone, but I could not detect either granite, quartz, or slate.

To the south-west of this hill the rock was slate, the strata nearly vertical; the strike north and south, but much contorted, and large pebbles of porphyry, quartz, slate, granite, sandstone, and agate formed banks in the bed of the river.

The granite contains little mica, and the quartz frequently is arranged in rhomboidal crystals nearly parallel to each other; it readily decomposes, and from the predominance of quartz forms a coarse gritty soil.

The granite contains little mica, and the quartz frequently is arranged in rhomboidal crystals nearly parallel to each other; it readily decomposes, and from the predominance of quartz forms a coarse gritty soil.

Quartz-rock forms large beds and veins in the granite, and has a general trend north and south.

In washing the sand of the river near Camp 83, only a small quantity of titaniferous iron remained after the removal of the quartz and mica.

The summits of the higher hills are formed by horizontal beds of white sandstone, containing water-worn pebbles of quartz.

At 6.30 a.m. resumed our journey, steering east and south for two hours over level flats; then turning east crossed a steep range of sandstone hills, the strata nearly vertical; the strike north and south; thin veins of quartz intersected the rock in every direction, forming a complete network.

The sandstone is intersected in every direction with veins of quartz, which do not appear to enter the slate.

On May 18th I have a note from Whewell about a number of crystals of plagiedral quartz, in which he was to observe the crystalline indication, and I the optical phenomena.

"In this month of October (principally, I believe) I made some capital Experiments on Quartz, which were treated mathematically in a Paper communicated in the next year to the Cambridge Philosophical Society.

In this December I had a quartz object-glass by Cauchaix mounted by Dollond, and presented it to the Observatory.

my Paper 'On the nature of the light in the two rays of Quartz' was communicated to the Philosophical Society: a capital piece of deductive optics.

As I returned on the outside of the coach there occurred to me a very remarkable deduction from my ideas about the rays of Quartz, which I soon tried with success, and it is printed as an Appendix to the Paper above mentioned.

stone, pebble, flint, marble, rock, fossil, crag, crystal, quartz, granite, adamant; bone, cartilage; hardware; heart of oak, block, board, deal board; iron, steel; cast iron, decarbonized iron, wrought iron; nail; brick, concrete; cement.

Our party had stopped to collect specimens of the lead ore, when the carriages were instantly surrounded by these females, offering ore, zinc, slick-and-slide, and various quartz crystals and fluor spars for sale; some of the women were very old, and one in particular, who had worked in the mine from her youth, was nearly a hundred years of age, yet she was upright and active, and wrinkles alone betrayed the fact.

The porcelain clay used at present in all the English works is obtained in Cornwall, by pounding and washing over the gray disintegrated granite which occurs in several parts of that county: by this means the quartz and mica are got rid of, and the clay resulting from the decomposition of the felspar is procured in the form of a white, somewhat gritty powder.

The quartz eye.

WEBSTER, MARY O. The quartz eye.

The gold-dust comes to birth with the quartz-sand all around it, and this is as much a condition of religion as of any other excellent possession.

To see the eastern part of it, however, it was necessary to cross to the opposite point, where some talc slate, pieces of which measured four inches in length, was found imbedded in quartz.

This we found to be a low cliffy projection of slate formation, whilst scattered over the face of the few miles of country, which we are able to explore, were small bits of quartz; large blocks also of which protruded occasionally through a light kind of mould.

The largest nugget of gold ever found before this time was a quartz boulder from the Buckeye sluice, about 8 by 10 inches in size, and when cleaned up at the San Francisco mint the value was about $10,000.

292 examples of  quartz  in sentences