Origin of quartzGerman quarz from uncertain or unknown; perhaps
any of various crystallized forms of silica that are transparent, translucent, or colored, used in many ways, esp. as a gem or in making glass, lenses, or quartz crystals
A very hard mineral composed of silica, SiO2, found worldwide in many different types of rocks, including sandstone and granite. Varieties of quartz include agate, chalcedony, chert, flint, opal, and rock crystal.
Origin of quartzGerman Quarz from Middle High German quarc of Slavic origin
(countable and uncountable, plural quartzes)
quartz - Computer Definition
- The rocks are probably of quartz, i.e.
- Gold is obtained chiefly from quartz reefs, but there are still some important alluvial deposits being worked.
- The greatest development of quartz reefing is found in Victoria, some of the mines being of great depth.
- The conglomerates consist almost entirely of pebbles of quartz set in a hard 2 At the Standerton gauge on the Vaal in 1905-1906, a year of extreme drought, the total flow was 8,017,000,000 cub.
- Jacquerod and Perrot have found that quartz-glass is freely permeable to helium below a red-heat (Comet.