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

Brownmillerite R130105

Name: Brownmillerite
RRUFF ID: R130105
Ideal Chemistry: Ca₂Fe³⁺AlO₅
Locality: Ettringer Feld, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany
Source: Donald Doell [view label]
Owner: RRUFF
Description: Brownish-red platy crystals. Diffraction indicates an I-centered lattice
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.

Mineral Groups: [ Brownmillerite (2) ] [ Perovskite (44) ]

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

Unoriented sample

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

BROAD SCAN WITH SPECTRAL ARTIFACTS

RRUFF ID:

R130105

Wavelength:

Sample Description:

Unoriented sample

Instrument settings:

Thermo Almega XR 532nm @ 100% of 150mW

DOWNLOADS:

	Raman Data (Processed)
	RRUFF File

POWDER DIFFRACTION

RRUFF ID:

R130105.9

Sample Description:

Single crystal, powder profile is calculated

Cell Refinement Output:

a: 5.353(1)Å b: 14.504(3)Å c: 5.583(1)Å
alpha: 90° beta: 90° gamma: 90° Volume: 433.4(1)Å³ Crystal System: orthorhombic

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 Brownmillerite
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]
Bertaut E F, Blum P, Sagnières A (1959) Structure du ferrite bicalcique et de la brownmillerite, Acta Crystallographica, 12, 149-159
Hentschel G (1964) Mayenit, 12CaO·7Al₂O₃, und Brownmillerit, 2CaO·(Al,Fe)₂O₃, zwei neue Minerale in den Kalksteinschlüssen der Lava des Ettringer Bellerberges, Neues Jahrbuch für Mineralogie, Monatshefte, 1964, 22-29
Fleischer M (1965) New mineral names, American Mineralogist, 50, 2096-2111 [view file]
Colville A A, Geller S (1971) The crystal structure of brownmillerite, Ca₂FeAlO₅, Acta Crystallographica, B27, 2311-2315
Redhammer G J, Tippelt G, Roth G, Amthauer G (2004) Structural variations in the brownmillerite series Ca₂(Fe_2-xAl_x)O₅: Single-crystal X-ray diffraction at 25°C and high-temperature X-ray powder diffraction (25°C< T <1000°C), American Mineralogist, 89, 405-420 [view file]
Vanpeteghem C B, Angel R J, Zhao J, Ross N L, Redhammer G J, Seifert F (2008) The effect of oxygen vacancies and aluminium substitution on the high-pressure properties of brownmillerite-structured Ca₂Fe_2-xAl_xO₅, Physics and Chemistry of Minerals, 35, 493-504
Mitchell R H, Welch M D, Chakhmouradian A R (2017) Nomenclature of the perovskite supergroup: A hierarchical system of classification based on crystal structure and composition, Mineralogical Magazine, 81, 411-461 [view file]

REFERENCES for Brownmillerite

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]

Bertaut E F, Blum P, Sagnières A (1959) Structure du ferrite bicalcique et de la brownmillerite, Acta Crystallographica, 12, 149-159

Hentschel G (1964) Mayenit, 12CaO·7Al₂O₃, und Brownmillerit, 2CaO·(Al,Fe)₂O₃, zwei neue Minerale in den Kalksteinschlüssen der Lava des Ettringer Bellerberges, Neues Jahrbuch für Mineralogie, Monatshefte, 1964, 22-29

Fleischer M (1965) New mineral names, American Mineralogist, 50, 2096-2111 [view file]

Colville A A, Geller S (1971) The crystal structure of brownmillerite, Ca₂FeAlO₅, Acta Crystallographica, B27, 2311-2315

Redhammer G J, Tippelt G, Roth G, Amthauer G (2004) Structural variations in the brownmillerite series Ca₂(Fe_2-xAl_x)O₅: Single-crystal X-ray diffraction at 25°C and high-temperature X-ray powder diffraction (25°C< T <1000°C), American Mineralogist, 89, 405-420 [view file]

Vanpeteghem C B, Angel R J, Zhao J, Ross N L, Redhammer G J, Seifert F (2008) The effect of oxygen vacancies and aluminium substitution on the high-pressure properties of brownmillerite-structured Ca₂Fe_2-xAl_xO₅, Physics and Chemistry of Minerals, 35, 493-504

Mitchell R H, Welch M D, Chakhmouradian A R (2017) Nomenclature of the perovskite supergroup: A hierarchical system of classification based on crystal structure and composition, Mineralogical Magazine, 81, 411-461 [view file]