What is the use of quartz and what makes it expensive Oct. 2016 | Page 4
Quartz as a Gemstone
Quartz makes an excellent gemstone. It is hard, durable and usually accepts a brilliant polish. Popular
varieties of quartz that are widely used as gems include: amethyst, citrine,rose quartz, and aventurine.
Agate and jasper are also varieties of quartz with a microcrystalline structure.
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Special Silica Stone Uses
"Silica stone" is an industrial term for materials such as quartzite, novaculite and other microcrystalline
quartz rocks. These are used to produce abrasive tools, deburring media, grinding stones, hones,
oilstones, stone files, tube-mill liners and whetstones.
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Quartz used in clocks
Quartz maintains a precise frequency standard, which helps regulate the movement of the clock, making
the timepieces very accurate.
Quartz is used mainly in jewelry and ornaments. Some people attribute medical healing properties to
quartz crystals but this remains unproven.
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