The word quartz is a noun. Quartz means (1) a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities, (2) colorless glass made of almost pure silica.
The following articles and web pages elaborate on the word quartz.
Atomic clocks keep time by means of quartz crystals and periodic radio-controlled synchronization with the NIST atomic clock. Visitors to this website will find comparisons of radio-controlled clocks and watches.
A wall clock can serve as a stylish wall decoration in addition to telling time. Modern wall clocks use quartz movements run by battery power, while traditional wall clocks may rely on weights and pendulums.
The following articles provide recent quartz-related news.
Goop has been criticized for its questionable wellness claims, including its advertisement that jade and quartz "eggs" can be used for vaginal health, NBC News reports.
CNBC. Tuesday, 07 Jan 2020 18:02:23 GMT.
Unlike natural stones, such as granite, quartz is an engineered stone, which means the stone is not being used in its natural state.
By Sheri Koones, Contributor. Forbes. Friday, 22 Nov 2019 17:37:36 +0000.