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1 lip 2024 · Quartz is a common and diverse mineral with a chemical formula of SiO2 and a hexagonal crystal system. It has a glassy luster, high hardness, and a conchoidal fracture, and can form in various geological settings and colors.
Learn about quartz, the most abundant mineral in Earth's crust, with a chemical composition of SiO2. Find out its physical properties, such as hardness, luster, cleavage, and fracture, and its various uses in glass, abrasives, gemstones, and more.
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.
Formula: SiO2. Colour: Colorless, purple, rose, red, black, yellow, brown, green, blue, orange, etc. Lustre: Vitreous. Hardness: 7. Specific Gravity: 2.65 - 2.66. Crystal System: Trigonal. Name: Quartz has been known and appreciated since pre-historic times.
Physical Properties of Quartz : Cleavage: {0110} Indistinct : Color: Brown, Colorless, Violet, Gray, Yellow. Density: 2.6 - 2.65, Average = 2.62 : Diaphaneity: Transparent : Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). Habit:
Learn about quartz, a silicon dioxide mineral with various colors, transparencies, and lusters. Discover its uses in electronics, construction, optics, and timekeeping due to its hardness, piezoelectricity, and optical properties.
Quartz is a silicon dioxide mineral with a wide range of colors and forms. Learn about its chemical composition, hardness, luster, cleavage, fracture, and how it is used in geology, society and the future.
