Paramontroseite R050391


Name: Paramontroseite
RRUFF ID: R050391
Ideal Chemistry: VO2
Locality: J.J. mine, Buell Canyon District, Montrose County, Colorado, USA
Source: University of Arizona Mineral Museum 1743 [view label]
Owner: RRUFF
Description: Black massive, radioactive
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Ramsdellite (2) ]
CHEMISTRY 
RRUFF ID: R050391.2
Sample Description: Microprobe fragment
Measured Chemistry: gray phase: (V4+0.82Fe3+0.09U6+0.04V5+0.03Al0.02)Σ=1O2; lightest phase is uranophane
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050391
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050391.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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POWDER DIFFRACTION 
RRUFF ID: R050391.1
Sample Description: Powder
Cell Refinement Output: a: 4.9009(4)Å    b: 9.3839(8)Å    c: 2.9080(5)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 133.74(2)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 Paramontroseite

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]

Evans H T, Block S (1953) The crystal structure of montroseite, a vanadium member of the diaspore group, American Mineralogist, 38, 1242-1250   [view file]

Evans H T, Mrose M E (1955) A crystal study of montroseite and paramontroseite, American Mineralogist, 40, 861-875   [view file]