[kwawrt-sahyt] /ˈkwɔrt saɪt/
a granular metamorphic rock consisting essentially of in interlocking grains.
a very hard metamorphic rock consisting of a mosaic of intergrown quartz crystals
a white or grey sandstone composed of quartz
1837, from quartz + -ite.
A metamorphic rock consisting entirely of quartz. Quartzite forms when sandstone or chert are heated during metamorphism.
noun 1. a lamp consisting of an ultraviolet light source, as mercury vapor, contained in a fused-silica bulb that transmits ultraviolet light with little absorption.
[kwawrts] /kwɔrts/ noun 1. one of the commonest minerals, silicon dioxide, SiO 2 , having many varieties that differ in color, luster, etc., and occurring either in masses (as agate, bloodstone, chalcedony, jasper, etc.) or in crystals (as rock crystal, amethyst, citrine, etc.): the chief constituent of sand and sandstone, and an important constituent of […]
noun, Horology. 1. an extremely accurate electronic movement utilizing the natural frequency of vibrations of a quartz crystal to regulate the operation of the timepiece (quartz clock or quartz watch)
noun, Electronics. 1. a carefully cut quartz crystal that is piezoelectrically active. Compare (def 10).