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  1. en.wikipedia.org › wiki › QuartzQuartz - Wikipedia

    Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO 4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO 2.

  2. Quartz is a tectosilicate mineral that is the second most common mineral in Earth's continental crust. [1] Its crystal structure is a framework of SiO 4 silicon – oxygen tetrahedra . Each shares an oxygen atom with another tetrahedron , so the overall chemical formula is SiO 2 or silica .

  3. static.hlt.bme.hu › pages › polimorfizmusQuartz - Wikipedia - BME

    Quartz is a mineral composed of silicon and oxygen atoms in a continuous framework of SiO 4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO 2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar.

  4. webmineral.com › data › QuartzQuartz Mineral Data

    Sedimentary, metamorphic, and igneous rocks. Very common mineral found world wide. Link to MinDat.org Location Data. From the German "quarz", of uncertain origin. Comments: Purple-colored druse of amethystine quartz and white calcite. Location: Rio Grande do Sul, Brazil. Scale: Sample size 20 cm.

  5. www.wikiwand.com › en › articlesQuartz - Wikiwand

    Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO 4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO 2.

  6. 30 paź 2024 · Quartz, widely distributed mineral of many varieties that consists primarily of silica, or silicon dioxide. Minor impurities such as lithium, sodium, potassium, and titanium may be present. Quartz has great economic importance. Learn more about quartz in this article.

  7. The two most common chemical elements in the Earth’s crust, oxygen and silicon, combine to form the mineral quartz, the second most abundant mineral after feldspar. Quartz has the chemical formula SiO 2 .