quartzite
IPA: kwˈɔrtsaɪt
noun
- (mineralogy) A metamorphic rock from sandstone, consisting of interlocking grains of quartz.
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Examples of "quartzite" in Sentences
- This involved shovel testing for artifacts, mainly rock material such as quartzite flakes or shatter left behind from making tools.
- But knocking around my basement are several knives, including Swedish Mora blades and some tarnished folding knives, that spark when struck against quartzite or flint.
- Pushed from different directions, the rocks almost liquefied from the intense pressure and some changed from sedimentary rocks into metamorphic rocks such as quartzite, slate and marble.
- The more resistant sequences, such as quartzite, form most of the prominent ranges in the area, while less resistant schist, dolomite and phyllite underline many of the valleys and plains.
- The mine's veins of gold and copper ran through quartzite with a high level of abrasive silica, rock so tough that it took all their expertise to keep the drill's hammers from curving off in unwanted directions.
- The quartzite, which is regarded as probably the highest member of the series, forms prominent ridges due to the more rapid erosion of the phyllites, mica-schists and limestones occupying the intervening hollows.
- Richard Davis, who is applying for mining rights, says he intends to turn the canyon into a quarry, but Dr. Bart Kowallis, a professor in the Department of Geology, said the only rock to mine there is quartzite, which is extremely common in Utah.
- More than 2,000 mounds have been opened, and at least 38,000 ancient relics have been gathered from them: such as quartzite arrow-heads and spades, greenstone axes and hammers, mortars and pestles, tools for spinning and weaving, and cloth, made of spun thread and woven with warp and woof, somewhat like a coarse sail-cloth.
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