Geikielite R070479

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Record 24 of 34  

Name: Geikielite
RRUFF ID: R070479
Ideal Chemistry: MgTiO3
Locality: Colombo, Sri Lanka
Source: Royal Ontario Museum M14941 [view label]
Owner: RRUFF
Description: Dark red fragment
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
Mineral Group: [ Corundum (34) ]
Sample Description: Unoriented sample

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RRUFF ID: R070479
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
RRUFF ID: R070479.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 5.049(2)Å    b: 5.049(2)Å    c: 13.886(6)Å
alpha: 90°    beta: 90°    gamma: 120°   Volume: 306.5(1)Å3    Crystal System: hexagonal
  File Type Information Close
Calculated diffraction file.

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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Geikielite

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]

Dick A (1893) On geikielite, a new mineral from Ceylon, Mineralogical Magazine, 10, 145-147   [view file]

Chao G Y, Hounslow A W (1966) Abstract of paper presented at the eleventh annual meeting: The first Canadian occurrence of geikielite, The Canadian Mineralogist, 8, 664-664   [view file]

Robie R A, Haselton H T, Hemingway B S (1989) Heat capacites and entropies at 298.15 K of MgTiO3 (geikielite), ZnO (zincite), and ZnCO3 (smithsonite), Journal of Chemical Thermodynamics, 21, 743-749

Wechsler B A, Von Dreele R B (1989) Structure refinement of Mg2TiO4, MgTiO3 and MgTi2O5 by time-of-flight neutron powder diffraction, Acta Crystallographica, B45, 542-549

Liferovich R P, Mitchell R H (2005) Rhombohedral ilmenite group nickel titanates with Zn, Mg, and Mn: synthesis and crystal structures, Physics and Chemistry of Minerals, 32, 444-449

Liferovich R P, Mitchell R H (2006) The pyrophanite–geikielite solid-solution series: crystal structures of the Mn1-xMgxTiO3 series (0 < x < 0.7), The Canadian Mineralogist, 44, 1099-1107   [view file]

Okada T, Narita T, Nagai T, Yamanaka T (2008) Comparative Raman spectroscopic study on ilmenite-type MgSiO3 (akimotoite), MgGeO3, and MgTiO3 (geikielite) at high temperatures and high pressures, American Mineralogist, 93, 39-47   [view file]

Robinson P, Langenhorst F, McEnroe S A, Fabian K, Ballaran T B (2014) Ferroan geikielite and coupled spinel-rutile exsolution from titanohematite: interface characterization and magnetic properties, American Mineralogist, 99, 1694-1712