Vonsenite R050221
Name: Vonsenite
RRUFF ID: R050221
Ideal Chemistry: Fe2+2Fe3+O2(BO3)
Locality: Monchi mine, Burguillos del Cerro, Badajoz, Extremadura, Spain
Source: Marcus Origlieri
Owner: RRUFF
Description: Mass of thin bladed black crystals
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Ludwigite (5) ]
Quick search: [ All Vonsenite samples (2) ]
CHEMISTRY 
RRUFF ID: R050221.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Fe2+1.96Mg0.03Mn0.01)Σ=2(Fe3+0.98Al0.02)Σ=1BO5
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050221
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050221.1
Sample Description: Powder
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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Infrared Data (Processed)
RRUFF File
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RRUFF ID: R050221.1
Sample Description: Powder
Instrument settings: PIKE GladiATR - Far-IR on a Nicolet Magna 860 FTIR
Resolution:
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Infrared Data (Processed)
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POWDER DIFFRACTION 
RRUFF ID: R050221.1
Sample Description: Powder
Cell Refinement Output: a: 9.4686(9)Å    b: 12.2986(8)Å    c: 3.0726(5)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 357.80(4)Å3    Crystal System: orthorhombic
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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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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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Cell Refinement Data
Cell Refinement Output Data
DIF File
X-ray Data (XY - Processed)
RRUFF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Vonsenite

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]

Eakle A S (1920) Vonsenite. A preliminary note on a new mineral, American Mineralogist, 5, 141-143   [view file]

Bertaut E F (1950) Structures des boroferrites, Acta Crystallographica, 3, 473-474

Swinnea J S, Steinfink H (1983) Crystal structure and Mössbauer spectrum of vonsenite, 2FeO·FeBO3, American Mineralogist, 68, 827-832   [view file]

Maderazzo M, Hughes J M, Dyar M D, Rossman G R, Ackley B J, Sklute E C, Lupulescu M V, Chiarenzelli J (2022) The atomic arrangement and electronic interactions in vonsenite at 295, 100, and 90 K, American Mineralogist, 107, 92-99