Quartz is the second most abundant mineral in Earth's continental crust, after
feldspar. ... Since antiquity, varieties of quartz have been the most commonly
used minerals in the making of jewel...
These sands are used in the glassmaking industry. Quartz sand is used in the
production of container glass, flat plate glass, specialty glass, and fiberglass.
Feb 21, 2013 ... The properties of quartz make timepieces very accurate.
Crushed quartz is used as an abrasive in sandpaper, silica sand is employed in
sandblasting, and sandstone is still used whole to make whetstones, millstones, ...
Even in our modern world, quartz is one of the most widely used minerals, though
few people are aware of its many contributions. One of its most common uses ...
Bentonite is used for drilling mud, pet waste absorbent, iron ore pelletizing and
foundry sand bond. .... As a crystal, quartz is used as a semiprecious gem stone.
Ancient Japanese believed quartz formed from the breath of a white dragon, and
regarded it as representing perfection. Australian Aborigines used quartz in ...
Transparent Rock Crystal has many electronic uses; it is used as oscillators in
radios, watches, and pressure gauges, and in the study of optics. Quartz is also ...
Detailed gem and jewelry information guide about the gemstone quartz. ... The
main crystalline Quartz varieties used as gemstones are described below.
Clear quartz has been used since ancient times, as it was believed to be a
source of power and energy. While they believed this on an intuitive level,