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Quartridge
Quartter
Quartus
Quartz
quartz battery
quartz crystal
quartz glass
quartz heater
quartz lamp
quartz mill
quartz oscillator
quartz rock
quartz-iodine lamp
Quartziferous
quartzitic
Quartzoid
quartzose
quartzous
Quartzy
Quas
quasar
Quaschi
Quash
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Quashee
Quashing

quartzite definitions

WordNet (r) 3.0 (2005)

n
1: hard metamorphic rock consisting essentially of interlocking quartz crystals

Merriam Webster's

noun Etymology: International Scientific Vocabulary Date: circa 1847 a compact granular rock composed of quartz and derived from sandstone by metamorphism quartzitic adjective

Britannica Concise

Sandstone that has been converted into a solid quartz rock. Quartzites are usually white; they fracture smoothly and break up into rubble under frost action. Sandstone may be converted to quartzite by precipitation of silica from waters below the earth's surface; such rocks are called orthoquartzites, whereas those produced by recrystallization (metamorphism) are metaquartzites. Because they weather slowly, they tend to project as hills or mountain masses. Many prominent ridges in the Appalachian Mtns. are composed of quartzite. Pure quartzites are a source of silica for metallurgical purposes and for the manufacture of silica brick. Quartzite is also quarried for paving and roofing materials.

Oxford Reference Dictionary

n. a metamorphic rock consisting mainly of quartz.

Webster's 1913 Dictionary

Quartzite Quartz"ite, n. [Cf. F. quartzite.] (Min.) Massive quartz occurring as a rock; a metamorphosed sandstone; -- called also quartz rock.

Soule's Dictionary of English Synonyms

n. Quartz-rock.



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