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
A hard, transparent trigonal mineral that, after feldspar, is the most common mineral on the surface of the Earth. It occurs as a component of igneous, metamorphic, and sedimentary rocks as well as in a variety of other forms such as rock crystal, flint, and agate. Some crystalline forms, such as amethyst, are considered gemstones. Chemical formula: SiO2.
(countable and uncountable, plural quartzes)
quartz - Computer Definition
- The rocks are probably of quartz, i.e.
- Jacquerod and Perrot have found that quartz-glass is freely permeable to helium below a red-heat (Comet.
- Gold is obtained chiefly from quartz reefs, but there are still some important alluvial deposits being worked.
- The lodes occur in Silurian metamorphic micaceous schists, intruded by granite, porphyry and diorite, and traversed by numerous quartz reefs, some of which are gold-bearing.
- He passed the oscillations to be detected through a fine wire or strip of gold leaf, and over this, but just not touching, suspended a loop of bismuth-antimony wire by a quartz fibre.