Vaterite is a mineral, a polymorph of calcium carbonate (CaCO3). It was named after the German mineralogist Heinrich Vater. It is also known as mu-calcium...
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aragonite and vaterite. Aragonite will change to calcite over timescales of days or less at temperatures exceeding 300 °C, and vaterite is even less stable...
46 KB (4,825 words) - 22:36, 30 September 2024
occurring as the mineral vaterite. The aragonite form can be prepared by precipitation at temperatures above 85 °C; the vaterite form can be prepared by...
79 KB (7,564 words) - 13:29, 19 September 2024
have a coating of vaterite spherules, which is a rare polymorph of calcium carbonate. In Greater Ani Crotophaga major this vaterite coating is thought...
42 KB (4,715 words) - 23:29, 22 August 2024
crystal forms of calcium carbonate (Ca CO3), the others being calcite and vaterite. It is formed by biological and physical processes, including precipitation...
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Ice nuclei Temperature to freeze Bacteria −2.6 °C (27.3 °F) Kaolinite −30 °C (−22 °F) Silver iodide −10 °C (14 °F) Vaterite −9 °C (16 °F)...
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Veszelyite Vsz Vladimirite Vld Vuagnatite Vgn Vanadoandrosite-(Ce) Vda-Ce Vaterite Vtr Viaeneite Via Vladimirivanovite Vla Vulcanite Vul Vanadomalayaite Vmly...
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Vanadiocarpholite Vanadium Vandenbrandeite Vantasselite Vanuralite Variscite Vaterite Vauquelinite Vauxite Veatchite Vermiculite Vesuvianite Villiaumite Violarite...
42 KB (2,782 words) - 13:55, 7 October 2024
aragonite (although vaterite abnormalities can occur), as are the lapilli, while the asterisci are normally composed of vaterite. The shapes and proportional...
26 KB (3,095 words) - 13:24, 30 June 2024
Both are forms of calcium carbonate. A third form of calcium carbonate is vaterite, which is hexagonal and relatively unstable. β-HgS precipitates as a black...
47 KB (5,152 words) - 17:40, 25 September 2024
calcite, "in preference to the other, less stable polymorphs, aragonite and vaterite." Other trace elements such as iron from rusting reinforcing or copper...
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Minrecordite; 15 Cerussite, 15 Aragonite, 15 Strontianite, 15 Witherite; 20 Vaterite, 25 Huntite, 30 Norsethite, 35 Alstonite; 40 Olekminskite, 40 Paralstonite;...
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Calcium carbonate (calcite, aragonite usually at t > ~50 °C, or rarely vaterite); Calcium sulfate (anhydrite, hemihydrate, gypsum); Calcium oxalate (e...
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Aragonite Calcite Nahcolite Natron Sodium sesquicarbonate Thermonatrite Trona Vaterite Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical...
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calcite as opposed to the other, less stable, polymorphs of aragonite and vaterite. Calthemites are generally composed of calcium carbonate (CaCO3) which...
28 KB (3,132 words) - 19:16, 4 July 2024
foraminifera, coccolithophores) and aragonite (e.g. corals), although metastable vaterite and amorphous calcium carbonate can also be important, either structurally...
100 KB (10,350 words) - 17:29, 24 September 2024
three most common calcium carbonate minerals are aragonite, calcite, and vaterite. Although these minerals have the same chemical formula (CaCO3), they are...
64 KB (7,212 words) - 19:35, 29 September 2024
which in the order of their usual stabilities are calcite, aragonite and vaterite. The main groups of microorganisms that can induce the carbonate precipitation...
35 KB (3,738 words) - 15:07, 16 May 2024
monohydrocalcite. The presence of Mg in solution is known to inhibit the formation of vaterite and calcite. However, the hydrated nature of monohydrocalcite means that...
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As aqueous alteration minerals occur: epsomite. In microscopic veins. vaterite. carbonates. sulfates. Carbonaceous minerals include: graphite. diamond...
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chondrites formed with chondrules and carbon. The carbonates whewellite/vaterite, hydromagnesite, calcite/dolomite, aragonite, and breunnerite have been...
76 KB (8,996 words) - 23:47, 21 July 2024
forms white needle-like crystals. Water and carbon dioxide are released. Vaterite, the third and rarest form of calcium carbonate is not present. The area...
21 KB (2,530 words) - 14:15, 2 October 2024
of anhydrous calcium carbonate phases, such as calcite, aragonite, and vaterite probably aid its formation and preservation. It is thought that perhaps...
22 KB (2,596 words) - 11:27, 3 September 2024
B; Kauffmann, Y; Fitch, AN; Bloch, L; Gilbert, PUPA; Pokroy, B (2013). "Vaterite crystals contain two interspersed crystal structures". Science. 340 (6131):...
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and Morphology of Calcium Carbonate Polymorphs Calcite, Aragonite, and Vaterite: An Atomistic Approach". The Journal of Physical Chemistry B. 102 (16):...
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Na6Mg(SO4)4 – Jacobus Henricus van't Hoff (1852–1911), professor of chemistry Vaterite: CaCO3 – German mineralogist Heinrich Vater (1859–1930) Vernadite (4.FE...
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them secrete calcite (some excrete vaterite, while a few species' excrement consists of both calcite and vaterite). Ordinary looking flowers have long...
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carbonate) Västmanlandite-(Ce) (gatelite: IMA2002-025) 9.BG.55 [212] [213] [no] Vaterite (IMA1962 s.p., 1911) 5.AB.20 [214] [215] [216] (IUPAC: anhydrous calcium...
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remaining five polymorphs (in decreasing stability) are: calcite, aragonite, vaterite, monohydrocalcite and ikaite. When mixing two supersaturated solutions...
20 KB (2,194 words) - 10:48, 5 December 2023
adult shell consist of aragonite and sometimes there is also under 1.5% of vaterite especially near the margin of the shell. The anatomy of the mantle cavity...
52 KB (5,039 words) - 20:26, 23 May 2024