Brunogeierite R090012
Name: Brunogeierite
RRUFF ID: R090012
Ideal Chemistry: Fe2+2Ge4+O4
Locality: Tsumeb, Namibia
Source: William W. Pinch [view label]
Owner: RRUFF
Description: Sharp black octahedra with hematite plates and elongated Zn-rich siderite. Sample originally from John Innes, also the source of single crystal studied by Welch et al (2001)
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
Mineral Group: [ Spinel (66) ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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RRUFF ID: R090012
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (Processed)
RRUFF File
Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R090012.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 8.414(5)Å    b: 8.414(5)Å    c: 8.414(5)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 595.70(5)Å3    Crystal System: cubic
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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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DIF File
X-ray Data (XY - RAW) View Graph
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REFERENCES for Brunogeierite

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]

Ottemann J, Nuber B (1972) Brunogeierite, ein Germanium-Ferritspinell von Tsumeb, Neues Jahrbuch für Mineralogie, Monatshefte, 1972, 263-267

Fleischer M (1973) New mineral names, American Mineralogist, 58, 347-349   [view file]

Johan Z, Oudin E, Picot P (1983) Analogues germanifères et gallifères des silicates et oxydes dans les gisements de zinc des Pyrénées centrales, France; argutite et carboirite, deux nouvelles espèces minérales, Tschermaks Mineralogische und Petrographische Mitteilungen, 31, 97-119

Welch M D, Cooper M A, Hawthorne F C (2001) The crystal structure of brunogeierite, Fe2GeO4 spinel, Mineralogical Magazine, 65, 441-444   [view file]

Williams P A, Hatert F, Pasero M, Mills S J (2011) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 9. New minerals and nomenclature modifications approved in 2011, Mineralogical Magazine, 75, 2535-2540   [view file]

Cempírek J, Groat L A (2013) Note on the formula of brunogeierite and the first bond-valence parameters of Ge2+, Journal of Geosciences, 58, 71-74   [view file]

Bosi F, Biagioni C, Pasero M (2019) Nomenclature and classification of the spinel supergroup, European Journal of Mineralogy, 31, 183-192   [view file]