R070479 - RRUFF Database: Raman, X-ray, Infrared, and Chemistry

Important Update News

The RRUFF Project (rruff.info) is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional.

We are grateful to NASA for the funding of this effort.

Geikielite R070479

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 (38) ]

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

Unoriented sample

DOWNLOADS:

To download sample data,
please select a specific
orientation angle.

BROAD SCAN WITH SPECTRAL ARTIFACTS

RRUFF ID:

R070479

Wavelength:

Sample Description:

Unoriented sample

Instrument settings:

Thermo Almega XR 532nm @ 100% of 150mW

DOWNLOADS:

	Raman Data (Processed)
	RRUFF File
	Raman Data (RAW)
	RRUFF File

POWDER DIFFRACTION

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

Calculated diffraction file.

File Type Information

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

DOWNLOADS:

	DIF File
	X-ray Data (XY - RAW)
	RRUFF File

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 Mn_1-xMg_xTiO₃ 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
Tokle L, Robertson K M (2019) X-ray diffraction calibration of the Fe²⁺–Mg²⁺ solid solution of ilmenite, with application to lunar basalts, European Journal of Mineralogy, 31, 473-483

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 Mn_1-xMg_xTiO₃ 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

Tokle L, Robertson K M (2019) X-ray diffraction calibration of the Fe²⁺–Mg²⁺ solid solution of ilmenite, with application to lunar basalts, European Journal of Mineralogy, 31, 473-483