Melanovanadite R050555

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Name: Melanovanadite
RRUFF ID: R050555
Ideal Chemistry: CaV4+2V5+2O10·5H2O
Locality: Ragra mine, Cerro de Pasco Province, Pasco Department, Peru
Source: Dave Bunk Minerals [view label]
Owner: RRUFF
Description: Radiating aggregates of black prismatic crystals
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Quick search: [ All Melanovanadite samples (2) ]
CHEMISTRY 
RRUFF ID: R050555.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Ca0.87   0.13)Σ=1(V5+2.26V4+1.74)Σ=4O10·5H2O
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: R050555
Wavelength:
Sample Description: Unoriented 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
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050555.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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Infrared Data (Processed)
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POWDER DIFFRACTION 
RRUFF ID: R050555.1
Sample Description: Powder
Cell Refinement Output: a: 6.3644(6)Å    b: 17.9888(9)Å    c: 6.287(2)Å
alpha: 110.332(8)°    beta: 101.61(1)°    gamma: 82.79(2)°   Volume: 659.9(2)    Crystal System: triclinic
  File Type Information Close
Calculated diffraction file.

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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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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 Melanovanadite

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]

Lindgren W (1921) Melanovanadite, a new mineral from Mina Ragra, Pasco, Peru, Proceedings of the National Academy of Sciences, 7, 249-251   [view file]

Lindgren W, Hamilton L F, Palache C (1922) Melanovanadite, a new mineral from Mina Ragra, Pasco, Peru, Proceedings of the National Academy of Sciences, 3, 195-203

Wherry E T (1922) New minerals: new species, American Mineralogist, 7, 162-164   [view file]

Konnert J A, Evans H T (1987) Crystal structure and crystal chemistry of melanovanadite, a natural vanadium bronze, American Mineralogist, 72, 637-644   [view file]

Evans H T, Hughes J M (1990) Crystal chemistry of the natural vanadium bronzes, American Mineralogist, 75, 508-521   [view file]