Laihunite R110051
Name: Laihunite
RRUFF ID: R110051
Ideal Chemistry: (Fe3+,Fe2+,◻)2(SiO4)
Locality: Laihe Fe deposit, Qianshan District, Anshan Prefecture, Liaoning Province, China
Source: Pingqu Fu [view label]
Owner: RRUFF
Description: Unconsolidated black subhedral grains. Type sample
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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RRUFF ID: R110051
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 50% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R110051.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 4.811(3)Å    b: 10.242(6)Å    c: 17.522(8)Å
alpha: 90°    beta: 90.01(5)°    gamma: 90°   Volume: 863.4(1)Å3    Crystal System: monoclinic
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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
RRUFF File
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REFERENCES for Laihunite

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]

Ferrifayalite Research Group (1976) Ferrifayalite and its crystal structure, Acta Geologica Sinica, 50, issue 2 161-175

Laihunite Research Group, Guiyang Institute of Geochemistry, Academia Sinica and Geological Team 101 (1976) Laihunite - a new iron silicate mineral, Geochimica, 2, 95-103   [view file]

Fleischer M, Pabst A, Mandarino J A, Chao G Y (1977) New mineral names, American Mineralogist, 62, 1057-1061   [view file]

Fleischer M, Cabri L J, Chao G Y, Pabst A (1978) New mineral names, American Mineralogist, 63, 424-427   [view file]

Shen B, Tamada O, Kitamura M, Morimoto N (1986) Superstructure of laihunite-3M (◻0.40Fe2+0.80Fe3+0.80SiO4), American Mineralogist, 71, 1455-1460   [view file]

Tomioka N, Morlok A, Koike C, Köhler M, Grady M (2012) Laihunite in planetary materials: An FTIR and TEM study of oxidized synthetic and meteoritic Fe-rich olivine, Journal of Mineralogical and Petrological Sciences, 107, 157-166

Xu H, Shen Z, Konishi H, Fu P, Szlufarska I (2014) Crystal structures of laihunite and intermediate phases between laihunite-1M and fayalite: Z-contrast imaging and ab initio study, American Mineralogist, 99, 881-889

Martin A M, Médard E, Devouard B, Keller L P, Righter K, Devidal J L, Rahman Z (2015) Fayalite oxidation processes in Obsidian Cliffs rhyolite flow, Oregon, American Mineralogist, 100, 1153-1164