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.
Quartz countertops are made from engineered stone and are a popular choice for the kitchen. They provide more color choices than granite and are easier to maintain.
https://www.quartz-countertops.org/
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.
https://www.atomicclocks.us/
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.
https://www.wallclocks.us/
The following articles provide recent quartz-related news.
New research examining the crystal structure of the silica mineral quartz under shock compression is challenging longstanding assumptions about this ubiquitous material.
Science Daily. Wednesday, 26 Aug 2020 15:13:06 EDT.
Researchers find the translucent rocks keep the moss moist while letting just enough light pass through its milky interior
Smithsonian. Friday, 21 Aug 2020 16:32:44 +0000.
The following digital image illustrates the word quartz.