Cornwallite R050469
Name: Cornwallite
RRUFF ID: R050469
Ideal Chemistry: Cu5(AsO4)2(OH)4
Locality: Carissa mine, Tintic District, Utah, USA
Source: University of Arizona Mineral Museum 7906 [view label]
Owner: RRUFF
Description: Dark green botryoidal crust
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
CHEMISTRY 
RRUFF ID: R050469.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Cu4.98Ca0.02)Σ=5(As1.00O4)2(OH)4 ; OH estimated by difference and charge balance
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample, mineral burns above 25% power under 780nm laser
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050469
Wavelength:
Sample Description: Unoriented sample, mineral burns above 25% power under 780nm laser
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: R050469.1
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: R050469.1
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: R050469.1
Sample Description: Powder
Cell Refinement Output: a: 4.6067(7)Å    b: 5.772(4)Å    c: 17.409(3)Å
alpha: 90°    beta: 91.95(1)°    gamma: 90°   Volume: 462.6(0)    Crystal System: monoclinic
  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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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 Cornwallite

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]

Church A H (1868) Chemical researches on new and rare Cornish minerals. V. Cornwallite, The Journal of the Chemical Society of London, 21, 276-279   [view file]

Berry L G (1951) Observations on chonichalcite, cornwallite, euchroite liroconite and olivenite, American Mineralogist, 36, 484-503   [view file]

Arlt T, Armbruster T (1999) Single-crystal X-ray structure refinement of cornwallite, Cu5(AsO4)2(OH)4: A comparison with its polymorph cornubite and the PO4- analogue pseudo malachite, Neues Jahrbuch für Mineralogie, Monatshefte, 1999, 468-480

Frost R L, Martens W N, Williams P A (2002) Raman spectroscopy of the phase-related basic copper arsenate minerals olivenite, cornwallite, cornubite and clinoclase, Journal of Raman Spectroscopy, 33, 475-484   [link]

Martens W N, Frost R L, Kloprogge J T, Williams P A (2003) The basic copper arsenate minerals olivenite, cornubite, cornwallite, and clinoclase: An infrared emission and Raman spectroscopic study, American Mineralogist, 88, 501-508   [view file]