 | | Journal (article/letter/editorial) | | Mantle-derived guyanaite in a Cr-omphacitite xenolith from Moses Rock diatreme, Utah† Daniel J. Schulze1...Kingston, Ontario K7L 3N6, Canada 1 Abstract Guyanaite, naturally occurring b-CrOOH, has been identified...in a xenolith of Cr-rich omphacitite from the Moses Rock diatreme in the Navajo Volcanic Field of the...of the xenolith, the rock was undergoing prograde metamorphism, with guyanaite dehydrating to eskolaite...uplift of the Colorado Plateau. Recognition of guyanaite as a component of a subducted slab supports recent |  | Dymshits, Anna M., Dorogokupets, Peter I., Sharygin, Igor S., Litasov, Konstantin D., Shatskiy, Anton, Rashchenko, Sergey V., Ohtani, Eiji, Suzuki, Akio, Higo, Yuji (2016) Thermoelastic properties of chromium oxide Cr2O3 (eskolaite) at high pressures and temperatures. Physics and Chemistry of Minerals, 43 (6) 447-458 doi:10.1007/s00269-016-0808-7 | Journal (article/letter/editorial) | | Cr-omphacitite xenolith from the Moses Rock ultramafic diatreme (Utah, USA) (Schulze et al. 2014). Cr2O3...Mantle-derived guyanaite in a Cr-omphacitite xenolith from Moses Rock diatreme, Utah. Am Miner 99(7):1277–1283 |  | Kissin, Aleksander, Gottman, Irina, Sustavov, Sergei, Murzin, Valery, Kiseleva, Daria (2020) The First Find of Cr2O3 Eskolaite Associated with Marble-Hosted Ruby in the Southern Urals and the Problem of Al and Cr Sources. Minerals, 10 (2) 101 doi:10.3390/min10020101 | Journal (article/letter/editorial) | | introduction of Al and Cr by metamorphogenic fluids during rock granitization and dynamothermal metamorphism [7...introduction of Al and Cr by metamorphogenic fluids during rock granitization [7,8] does not contradict the facts...temperature metasomatic process that brings the initial rock closer to granite in chemical composition through...Mantle-derived guyanaite in a Cr-omphacitite xenolith from Moses Rock diatreme, Utah. Amer. Miner. 2014 |  | | Journal (article/letter/editorial) | | Abstract Jadeitite is a relatively rare, very tough rock composed predominantly of jadeite and typically...on 01/12/15. For personal use only. Jadeitite: a rock composed primarily of clinopyroxene with jadeite...jadeite composition (NaAlSi2 O6 ) Serpentinite: a rock composed principally of serpentine minerals (antigorite...formed from the hydration of peridotite Peridotite: a rock composed of >40% olivine and <10% plagioclase Metasomatism:...Metasomatism: a chemical replacement of a rock or mineral by another, usually by fluid-mediated mass transfer |  | | Book | | science teachers at all levels, for collectors and "rock hounds," and for all who are curious about the minerals...spinel structure; quartz syenite, the name of a rock different from quartzbearing syenite. Although...end with -ite, it should be appreciated that many rock and fossil terms also have this suffix (see The...Publishing Scripta Company, Washington, DC 20005 USA. Acta Chemica Scandinavica, 1947-, Munksgaard, Noerre...Ohio 43214, USA. American Chemical Society, Journal, 1879-, Washington, DC 20036, USA. American Crystallographic |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | England. Sharon Cisneros: Minerological Research Co., San Jose, California. Andrew M. Clark: Dept. of Mineralogy...Mineralogy, Natural History Museum, London, England. Rock H. Currier: Jewel Tunnel Imports, Baldwin Park,...lunar rocks so far examined are very similar to some rock types known on earth. The crust of the earth consists...glaciers and ice caps may be considered a monomineralic rock. Nearly 99% of the composition of these rocks consists...Isand South Carolina South Dakota Tennessee Texas Utah Vermont Virginia AL AK AZ AR CA CO CT DE FL GA |  | | Book | | inclusion signatures in Mogok tract ruby and allied rock suites. These low LREE/higher REE profiles reported...The Introduction indicates that changes in host rock chemistry and physical conditions during formation...Bureau of Mines, mineral dealers and miners from MT, USA, sapphire fields. The sample sets included rubies... but also from more limited sources in Montana, USA. Transitional pink sapphires from Sri Lanka and Montana...polysynthetic twinning, common in sapphires. Montana, USA, sapphire and ruby suites cover a number of spaced |
|
