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- Silicon dioxide (redirect from Silica Mineral)coordination increases the ionicity of the Si–O bond. Faujasite silica, another polymorph, is obtained by the dealumination of a low-sodium, ultra-stable...66 KB (6,935 words) - 15:03, 29 August 2024
- Quartz (category Silica polymorphs)Chalcedony is a cryptocrystalline form of silica consisting of fine intergrowths of both quartz, and its monoclinic polymorph moganite. Other opaque gemstone varieties...61 KB (5,748 words) - 20:28, 3 September 2024
- Silica fume, also known as microsilica, (CAS number 69012-64-2, EINECS number 273-761-1) is an amorphous (non-crystalline) polymorph of silicon dioxide...9 KB (1,120 words) - 07:56, 6 February 2023
- Moganite (category Silica polymorphs); Post, Jeffrey E. (1992). "The Widespread Distribution of a Novel Silica Polymorph in Microcrystalline Quartz Varieties". Science. 255 (5043): 441–443...7 KB (643 words) - 15:00, 8 July 2024
- Opal (category Silica polymorphs)low-pressure polymorphs of anhydrous silica consists of frameworks of fully corner bonded tetrahedra of SiO4. The higher temperature polymorphs of silica cristobalite...56 KB (5,837 words) - 00:32, 6 September 2024
- Jeffrey E. (24 January 1992). "The Widespread Distribution of a Novel Silica Polymorph in Microcrystalline Quartz Varieties". Science. New Series. 255 (5043):...18 KB (1,845 words) - 19:56, 3 May 2024
- Tridymite (category Silica polymorphs)Tridymite is a high-temperature polymorph of silica and usually occurs as minute tabular white or colorless pseudo-hexagonal crystals, or scales, in cavities...9 KB (739 words) - 20:48, 24 January 2024
- Stishovite (category Silica polymorphs)discovered in Meteor Crater in 1962 by Edward C. T. Chao. Unlike other silica polymorphs, the crystal structure of stishovite resembles that of rutile (TiO2)...8 KB (771 words) - 19:16, 14 June 2024
- Two-dimensional silica (2D silica) is a layered polymorph of silicon dioxide. Two varieties of 2D silica, both of hexagonal crystal symmetry, have been...3 KB (253 words) - 18:06, 15 July 2022
- rocks with equilibrated assemblages. Silica-oversaturated rocks contain quartz (or another silica polymorph). Silica-undersaturated mafic igneous rocks...5 KB (647 words) - 22:36, 10 March 2023
- Keatite (category Silica polymorphs)dioxide) that was discovered in nature in 2013. It is a tetragonal polymorph of silica first known as a synthetic phase. It was reported as minute inclusions...3 KB (230 words) - 20:54, 24 January 2024
- Cristobalite (category Silica polymorphs)Cristobalite (/krɪˈstoʊbəˌlaɪt/) is a mineral polymorph of silica that is formed at very high temperatures. It has the same chemical formula as quartz...13 KB (1,335 words) - 21:39, 8 April 2024
- has changed from a silicate structure to that of rutile (TiO2). The silica polymorph that is most stable at the Earth's surface is α-quartz. Its counterpart...109 KB (13,007 words) - 16:14, 20 July 2024
- Seifertite (category Silica polymorphs)silicate mineral with the formula SiO2 and is one of the densest polymorphs of silica. It has only been found in Martian and lunar meteorites, where it...6 KB (476 words) - 23:26, 29 January 2023
- Silicate (redirect from Silica polymer)six-coordinated octahedral geometry in the mineral stishovite, a dense polymorph of silica found in the lower mantle of the Earth and also formed by shock during...10 KB (1,157 words) - 18:08, 8 August 2024
- Melanophlogite (category Silica polymorphs)Melanophlogite (MEP) is a rare silicate mineral and a polymorph of silica (SiO2). It has a zeolite-like porous structure which results in relatively low...6 KB (536 words) - 16:13, 28 August 2023
- Coesite (category Silica polymorphs)Coesite (/ˈkoʊsaɪt/) is a form (polymorph) of silicon dioxide (SiO2) that is formed when very high pressure (2–3 gigapascals), and moderately high temperature...12 KB (1,172 words) - 13:42, 20 July 2024
- crust. In mineralogy, silica (silicon dioxide, SiO2) is usually considered a silicate mineral rather than an oxide mineral. Silica is found in nature as...20 KB (1,897 words) - 18:21, 16 July 2024
- applicability of the BKS potential has been extended to both the silica polymorphs and other tetrahedral network oxides systems that have same cluster...9 KB (1,324 words) - 07:20, 4 September 2024
- standard, or blank filter. Measure the diffraction peak area for each silica polymorph. Scan times m ust be long, e.g., 15 min (longer scan times will lower
- methods. The binding of clasts together by a finer material, typically silica, calcium carbonate, or iron oxide, to form a clastic rock. Article: Sedimentary