Lepidocrocite R050454



Name: Lepidocrocite
RRUFF ID: R050454
Ideal Chemistry: Fe3+O(OH)
Locality: Malvern, Chester County, Pennsylvania, USA
Source: University of Arizona Mineral Museum 16088 [view label]
Owner: RRUFF
Description: Aggregate of red-brown flattened and platy crystals
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Lepidocrocite (3) ]
CHEMISTRY 
RRUFF ID: R050454.2
Sample Description: Microprobe fragment
Measured Chemistry: Fe3+0.99O(OH)
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050454
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050454.1
Sample Description: Powder
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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POWDER DIFFRACTION 
RRUFF ID: R050454.1
Sample Description: Powder
Cell Refinement Output: a: 12.4682(7)Å    b: 3.8584(5)Å    c: 3.064(1)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 147.40(5)Å3    Crystal System: orthorhombic
  File Type Information Close
Calculated diffraction file.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Lepidocrocite

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]

Hausmann J F L (1813) Schuppig- fafriger, 1, in Handbuch der Mineralogie Bandenhoect und Ruprecht Göttingen 269-269   [view file]

Ullmann J C (1814) IV. Metallische Fossilien. 260. Lepidokrokit, in Systematisch-Tabellarische Uebersicht der Mineralogisch-Einfachen Fossilien Cassel und Marburg 148-148   [view file]

Posnjak E, Merwin H E (1919) The hydrated ferric oxides, American Journal of Science, 47, 311-348   [view file]

Fleischer M, Cabri L J, Nickel E H, Pabst A (1977) New mineral names, American Mineralogist, 62, 593-600   [view file]

International Mineralogical Association (1980) International Mineralogical Association: Commission on new minerals and mineral names, Mineralogical Magazine, 43, 1053-1055   [view file]

Christensen A N, Lehmann M S, Convert P (1982) Deuteration of crystalline hydroxides. Hydrogen bonds of ϒ-AlOO(H,D) and ϒ-FeOO(H,D), Acta Chemica Scandinavica, A 36, 303-308

de Faria D L A, Silva S V, de Oliveira M T (1997) Raman microspectroscopy of some iron oxides and oxyhydroxides, Journal of Raman Spectroscopy, 28, 873-878   [link]

Oh S J, Cook D C, Townsend H E (1998) Characterization of iron oxides commonly formed as corrosion products on steel, Hyperfine Interactions, 112, 59-65   [link]

Zhukhlistov A P (2001) Crystal structure of lepidocrocite FeO(OH) from the electron-diffractometry data, Crystallography Reports, 46, 730-733   [view file]

Shannon R D, Shannon R C, Medenbach O, Fischer R X (2002) Refractive index and dispersion of fluorides and oxides, Journal of Physical and Chemical Reference Data, 31, 931-970   [view file]

Frankel R B, Bazylinski D A (2003) Biologically induced mineralization by bacteria, Reviews in Mineralogy and Geochemistry, 54, 95-114