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TiO2 II

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Formula:
TiO2
Colour:
Colourless (synthetic)
Name:
Name used until species is submitted to the IMA and approved.
A shock-induced or ultrahigh-pressure environment, dense polymorph of TiO2 with a α-PbO2 structure.

Originally reported from Ries Crater, Nördlingen, Swabia, Bavaria, Germany.


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Physical Properties of TiO2 IIHide

Transparency:
Opaque
Colour:
Colourless (synthetic)

Chemical Properties of TiO2 IIHide

Formula:
TiO2

Synonyms of TiO2 IIHide

Fluorescence of TiO2 IIHide

Light red-orange cathodluminescence under electron microprobe (synthetic material).

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for TiO2 IIHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Akaogi, M., K. Kusaba, J. Susaki, T. Yagi, M. Matsui, T. Kikegawa, H. Yusa, and E. Ito (1992), High-pressure high-temperature stability of a α-PbO2-type TiO2 and MgSiO3 majorite: calorimetric and in situ X-ray diffraction studies. In Y. Syono and M.H. Manghnani, Editors, High-Pressure Research Application to Earth and Planetary Sciences: 67: 447-455. Terra Scientific/American Geophysical Union, Tokyo/Washington, D.C.
El Goresy, A., P. Gillet, M. Chen, L. Dbrovinsky, and T.G. Sharp (2000), A new natural dense polymorph of rutile with the α-PbO2 structure in shocked gneisses from the Ries meteorite crater, Germany, Goldschmidt 2000, Sept. 3rd.-8th., Oxford, UK Journal of Conference Abstracts: 5: 379.
Hwang, Shyh-Lung, Pouyan Shen, Hao-Tsu Chu, Tzen-Fu Yui (2000), Nanometer-size α-PbO2-type TiO2 in garnet: a thermobarometer for ultrahigh-pressure metamorphism: Science: 288: 321-324.
Jambor, John L., Jacek Puziewicz, and Andrew C. Roberts (2000), New Mineral Names: American Mineralogist: 85: 1843-1847.
El Goresy, A., M. Chen, L. Dbrovinsky, P. Gillet, and G. Graup (2001a), An ultradense polymorph of rutile with seven-coordinated titanium from the Ries crater: Science: 293: 1467-1470.
El Goresy, A., M. Chen, L. Dbrovinsky, P. Gillet, and G. Graup (2001b), Twpo novel shock-induced very dense polymorphs of rutile in suevite from the Ries crater, Germany: implications for peak-shock pressures and post-shock temperatures: Proceedings of the Lunar and Planetary Science XXXII, Abstract 1084.
El Goresy, A., M. Chen, P. Gillet, L. Dbrovinsky, G. Graup, and R. Ahuja (2001c), A natural shock-induced dense polymorph of rutile with α-PbO2 structure in the suevite from the Ries crater in Germany: Earth and Planetary Science Letters: 192: 485-495.
Withers, Anthony C., Eric J. Essene, and Youxue Zhang (2003), Rutile/TiO2 II phase equilibria: Contributions to Mineralogy and Petrology: 145: 199-204.
Wu, Xiuling, Dawei Meng, and Yujing Han (2005), α-PbO2-type nanophase of TiO2 from coesite-bearing eclogite in the Dabie Mountains, China: American Mineralogist: 90: 1458-1461.
Jackson, John C., J. Wright Horton, Jr., I-Ming Chou, and Harvey E. Belkin (2006), A shock-induced polymorph of anatase and rutile from the Chesapeake Bay impact structure, Virginia, U.S.A.: American Mineralogist: 91: 604-608.

Internet Links for TiO2 IIHide

Localities for TiO2 IIHide

ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
China
 
  • Anhui Province
    • Anqing Prefecture
      • Taihu Co.
Wu, Xiuling, Dawei Meng, and Yujing Han (2005), α-PbO2-type nanophase of TiO2 from coesite-bearing eclogite in the Dabie Mountains, China: American Mineralogist: 90: 1458-1461.
  • Xinjiang Autonomous Region
    • Bayin'gholin Autonomous Prefecture (Bayingolin Autonomous Prefecture; Bayinguoleng Autonomous Prefecture)
      • Qiemo Co. (Qerqen Co.; Cherchen Co.)
        • Jianggalesayi area
Zhang, J.X. et al. (2001): Lithos 56, 187-206.
Germany
 
El Goresy, A. et al. (2000, 2001a-c).
  • Saxony
Hwang, Shyh-Lung, Pouyan Shen, Hao-Tsu Chu, Tzen-Fu Yui (2000), Nanometer-size α-PbO2-type TiO2 in garnet: a thermobarometer for ultrahigh-pressure metamorphism: Science: 288: 321-324.
USA
 
  • Virginia
    • Northampton Co.
      • Cape Charles
Jackson, John C., J. Wright Horton, Jr., I-MIng Chou, and Harvey E. Belkin (2006), A shock-induced polymorph of anatase and rutile from the Chesapeake Bay impact structure, Virginia, USA: American Mineralogist: 91: 604-608.
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