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Quartz is a hard,
crystalline mineral composed of
silica (silicon dioxide). The
atoms are
linked in a
continuous framework of SiO4 silicon–oxygen tetrahedra...
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Quartz clocks and
quartz watches are
timepieces that use an
electronic oscillator regulated by a
quartz crystal to keep time. This
crystal oscillator...
- Look up
quartz in Wiktionary, the free dictionary.
Quartz is a
common mineral.
Quartz may also
refer to:
Quartz, California,
former settlement in Butte...
- The
quartz crisis (Swiss) or
quartz revolution (American, ****an and
other countries) was the
upheaval in the
watchmaking industry caused by the advent...
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Fused quartz,
fused silica or
quartz gl**** is a gl****
consisting of
almost pure
silica (silicon dioxide, SiO2) in
amorphous (non-crystalline) form. This...
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comprise about 20–25% of all
sedimentary rocks. Most
sandstone is
composed of
quartz or feldspar,
because they are the most
resistant minerals to the weathering...
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Smoky quartz is a
brownish grey,
translucent variety of
quartz that
ranges in
clarity from
almost complete transparency to an almost-opaque brownish-gray...
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Quartz is an
American English language news
website owned by G/O Media.
Focused on
international business news, it was
founded in 2012 by
Atlantic Media...
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Quartz is a job
scheduling library that can be
integrated into a wide
variety of Java applications.
Quartz is
generally used for
enterprise class applications...
- element. The
oscillator frequency is
often used to keep
track of time, as in
quartz wris****ches, to
provide a
stable clock signal for
digital integrated circuits...