Erythrite R050073


Name: Erythrite
RRUFF ID: R050073
Ideal Chemistry: Co3(AsO4)2·8H2O
Locality: Bou Azzer, Morocco
Source: Rock Currier
Owner: RRUFF
Description: Crimson flattened crystals
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Vivianite (16) ]
CHEMISTRY 
RRUFF ID: R050073.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Co0.65Mg0.35)3(As1.00O4)2·8H2O
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented, mounted onto a pin and polished
Pin ID: M00408
Orientation: Laser parallel to  a*  (1 0 0).     Fiducial mark perpendicular to laser is parallel to  b   [0 1 0].
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Direction of polarization of laser relative to fiducial mark:
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050073
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 65% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050073.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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POWDER DIFFRACTION 
RRUFF ID: R050073.1
Sample Description: Powder
Cell Refinement Output: a: 10.273(2)Å    b: 13.4342(6)Å    c: 4.7543(9)Å
alpha: 90.°    beta: 105.11(2)°    gamma: 90.°   Volume: 633.4(1)Å3    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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REFERENCES for Erythrite

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]

Beudant F S (1832) Érythrine, cobalt arséniaté, in Traité Élémentaire de Minéralogie, 2nd Edition Paris 596-597   [view file]

Faye G H, Nickel E H (1968) The origin of pleochroism in erythrite, The Canadian Mineralogist, 9, 492-504   [view file]

Jambor J L, Dutrizac J E (1995) Solid solutions in the annabergite - erythrite - hörnesite synthetic system, The Canadian Mineralogist, 33, 1063-1071   [view file]

Wildner M, Giester G, Lengauer C L, McCammon C A (1996) Structure and crystal chemistry of vivianite-type compounds: Crystal structures of erythrite and annabergite with a Mössbauer study of erythrite, European Journal of Mineralogy, 8, 187-192

Frost R L, Kloprogge T, Weier M L, Martens W N, Ding Z, Edwards H G H (2003) Raman spectroscopy of selected arsenates - implications for soil remediation, Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 59, 2241-2246   [link]

Frost R L, Martens W, Williams P A, Kloprogge J T (2003) Raman spectroscopic study of the vivianite arsenate minerals, Journal of Raman Spectroscopy, 34, 751-759   [link]

Martens W N, Kloprogge J T, Frost R L, Rintoul L (2004) Single crystal Raman study of erythrite, Co3(AsO4)2·8H2O, Journal of Raman Spectroscopy, 35, 208-216   [link]

Capitelli F, Elaatmani M, Lalaoui M D, Piniella J F (2007) Crystal structure of a vivianite-type mineral: Mg-rich erythrite, (Co2.16Ni0.24Mg0.60)(AsO4)2 · 8 H2O, Zeitschrift für Kristallographie, 222, 676-679

Hazen R M, Hystad G, Golden J J, Hummer D R, Liu C, Downs R T, Morrison S M, Ralph J, Grew E S (2017) Cobalt mineral ecology, American Mineralogist, 102, 108-116