Quartz on Wikipedia Quartz Quartz
is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon–oxygen tetrahedra
Quartz clock Quartz
watches are timepieces that use an electronic oscillator regulated by a
crystal to keep time. This crystal oscillator
crisis was the upheaval in the watchmaking industry caused by the advent of
watches in the 1970s and early 1980s, that largely replaced
in Wiktionary, the free dictionary.
is a common mineral.
may also refer to:
, California, former settlement in Butte
, fused silica or
glass is a glass consisting of almost pure silica (silicon dioxide, SiO2) in amorphous (non-crystalline) form. This
comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of
or feldspar (both silicates) because they are the most resistant minerals
is a brownish grey, translucent variety of
that ranges in clarity from almost complete transparency to an almost-opaque brownish-gray
(IX-150), a Trefoil-class concrete barge designated an unclassified miscellaneous vessel, was the only ship of the United States Navy to be
element. The oscillator frequency is often used to keep track of time, as in
wristwatches, to provide a stable clock signal for digital integrated circuits
Quartz (scheduler) Quartz
is a job scheduling library that can be integrated into a wide variety of Java applications.
is generally used for enterprise class applications