Tridymite R040143

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Name: Tridymite
RRUFF ID: R040143
Ideal Chemistry: SiO2
Locality: Big Lue Mountain, Highway 78, Greenlee County, Arizona, USA
Source: University of Arizona Mineral Museum 12643 [view label]
Owner: RRUFF
Description: Colorless thin hexagonal plates
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Quick search: [ All Tridymite samples (3) ]
CHEMISTRY 
RRUFF ID: R040143.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Si0.99Al0.01)O2
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R040143
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R040143.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 9.9222(4)Å    b: 17.1967(8)Å    c: 81.890(6)Å
alpha: 89.992(5)°    beta: 90.039(4)°    gamma: 89.971(3)°   Volume: 13973(1)    Crystal System: triclinic
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REFERENCES for Tridymite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

vom Rath G (1868) Ueber den Tridymit, eine neue krystallisirte Modification der Kieselsäure, Annalen der Physik und Chemie, 135, 437-454   [view file]

Fleischer M (1954) New mineral names, American Mineralogist, 39, 402-408   [view file]

Friedlaender C G I (1970) Entaxy of tridymite in the gangue of a Pb-Cu-Zn occurrence, The Canadian Mineralogist, 10, 704-709   [view file]

Bailey S W (1977) Report of the I.M.A-I.U.Cr. Joint Committee on Nomenclature, American Mineralogist, 62, 411-415   [view file]

Konnert J H, Appleman D E (1978) The crystal structure of low tridymite, Acta Crystallographica, B34, 391-403

Graetsch H, Topalovic-Dierdorf I (1996) 29Si MAS NMR spectrum and superstructure of modulated tridymite L3-To(MX-1), European Journal of Mineralogy, 8, 103-113

Graetsch H (2001) X-ray powder diffraction study on the modulated high temperature forms of SiO2 tridymite between 110 and 220 C, Physics and Chemistry of Minerals, 28, 313-321

Hirose T, Kihara K, Okuno M, Fujinami S, Shinoda K (2005) X-ray, DTA and Raman studies of monoclinic tridymite and its higher temperature orthorhombic modification with varying temperature, Journal of Mineralogical and Petrological Sciences, 100, 55-69   [view file]

Kihara K, Hirose T, Shinoda K (2005) Raman spectra, normal modes and disorder in monoclinic tridymite and its higher temperature orthorhombic modification, Journal of Mineralogical and Petrological Sciences, 100, 91-103   [view file]