Quartz

Overview

Quartz, second most common of all minerals, is composed of silicon dioxide, or silica, SiO2. and distributed all over the world as a constituent of rocks and in the form of pure deposits. It is an essential constituent of igneous rocks such as granite, rhyolite, and pegmatite, which contain an excess of silica. In metamorphic rocks, it is a major constituent of the various forms of gneiss and schist; the metamorphic rock quartzite is composed almost entirely of quartz. Quartz forms veins and nodules in sedimentary rock, principally limestone. Sandstone, a sedimentary rock, is composed mainly of quartz. Quartz is also the primary constituent of sand. The size of the crystals varies from specimens weighing a metric ton to minute particles that sparkle in rock surfaces. The mineral has a hardness of 7 on Mho scale and specific gravity of 2.65. The luster in some specimens is vitreous; in others it is greasy or resplendent (shining glossily). Some specimens are transparent, glassy, glazy; others are translucent. In the pure form, the mineral is colorless, but it is commonly colored by impurities.

Uses

Pure Quartz rock crystal
Optical and electronic equipment

Quartz Sand
Manufacturing glass, silica brick, cement, mortar, Filter sand, as filler in pesticides, and as glass beads for blasting media.

Quartz Grains/Grits
As an abrasive in stonecutting, sandblasting, as frac sand in oil drilling and glass grinding, fiber glass, solid surface, Paint stripping, Micro graving and Micro blasting

Quartz Filler
Porcelain, ceramics, sanitary ware, scouring soaps, sandpaper, construction chemicals, foundry chemicals, match sticks, as filler in ceramics, lead crystal, crystal glass, welding electrodes

Large amounts of quartz are used as a flux in smelting operations. Another important and good use of Quartz is now engineered stone / Quartz countertops / Solid Surface, where glassy and glazy Indian Quartzite is finding huge application.

Quartz
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Snow White Quartz	Quartz	Quartz Lumps