• Tongbaite - Wikipedia

    en.wikipedia.org/wiki/Tongbaite Tongbaite is a rare mineral that has the chemical formula Cr 3 C 2, or chromium carbide.. It was first described in 1983 for an occurrence in Liu village, Tongbai County (桐柏县), Henan Province, China and named for the locality. It occurs in an ultramafic rock deposit. It has also been reported from the Tibet Autonomous Region and from the Isovsky District in the Urals of Russia.
  • Tongbaite Cr3C2

    www.handbookofmineralogy.com/pdfs/tongbaite.pdf Tongbaite Cr3C2 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Orthorhombic. Point Group: 2/m2/m2/m. Prismatic, pseudohexagonal crystals, to 0.3 mm, may have spearhead-shaped terminations.
  • Tongbaite Mineral Data

    webmineral.com/data/Tongbaite.shtml Tongbaite Crystallography: Axial Ratios: a:b:c =0.4856:1:0.2455 : Cell Dimensions: a = 5.57, b = 11.47, c = 2.816, Z = 4; V = 179.91 Den(Calc)= 6.65
  • Tongbaite dictionary definition | tongbaite defined

    www.yourdictionary.com/tongbaite tongbaite definition: Noun 1. (mineralogy) An orthorhombic-dipyramidal light brownish yellow mineral containing carbon and chromium.Origin -ite...
  • Chromium(II) carbide - Wikipedia

    en.wikipedia.org/wiki/Chromium(II)_carbide Chromium(II) carbide is a ceramic compound that exists in several chemical compositions: Cr 3 C 2, Cr 7 C 3, and Cr 23 C 6.At standard conditions it exists as a gray solid. It is extremely hard and corrosion resistant. It is also a refractory compound, which means that it retains its strength at high temperatures as well. These properties make it useful as an additive to metal alloys.
  • Mineralienatlas Lexikon - Tongbaite (english Version)

    www.mineralatlas.eu/lexikon/index.php/MineralData Mineral Data, Mineralienatlas Lexikon, Tongbaite. Strunz 9th edition incl. updates. 1.BA.15. 1: Elemente (Metalle, intermetallische Legierungen, Metalloide u.
  • Tongbaite

    e-rocks.com/minerals/6056/tongbaite Current Live Fixed Price Sales. Sign In. Username or e-mail *
  • mp-20937: Cr3C2 (orthorhombic, Pnma, 62)

    www.materialsproject.org/materials/mp-20937 Cr3C2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Cr+2.67+ sites. In the first Cr+2.67+ site, Cr+2.67+ is bonded in a 2-coordinate geometry to five C4- atoms. There are a spread of Cr–C bond distances ranging from 2.02–2.58 Å. In the second Cr+2.67+ site, Cr+2.67+ is bonded to five C4- atoms to form a mixture of ...
  • AMCSD Search Results - Raman Spectroscopy

    rruff.geo.arizona.edu/AMS/minerals/Tongbaite Tongbaite: Rundqvist S, Runnsjo G : Acta Chemica Scandinavica 23 (1969) 1191-1199: Crystal structure refinement of Cr3C2: Locality: synthetic: Note: values obtained from intensities measured with scintillation counter _database_code_amcsd 0011914: 5.5329 2.8290 11.4719 90 90 90 Pnma: atom x y z Biso: Cr1 .01632 .25 .40165 .539
  • Well Arranged Molecules

    www.wellarrangedmolecules.com/main/index.php Well-arranged molecules is the mineral project of Kevin Downey. Dedicated to finding and sharing fine minerals worldwide with those who appreciate them.