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Wendwilsonite R180008

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Name: Wendwilsonite
RRUFF ID: R180008
Ideal Chemistry: Ca2Mg(AsO4)2·2H2O
Locality: Bou Azzer, Morrocco
Source: Wendell Wilson 4
Owner: RRUFF
Description: Red crystals associated with colorless calcite
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Roselite (18) ]
Quick search: [ All Wendwilsonite samples (10) ]
CHEMISTRY 
RRUFF ID: R180008.2
Sample Description: Microprobe Fragment
Measured Chemistry: Ca1.97(Mg0.55Co0.38Ni0.03Mn0.02Cu0.01)Σ=0.99(AsO4)2·2H2O
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R180008
Wavelength:
Sample Description: Unoriented Raman on the primary 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
POWDER DIFFRACTION 
RRUFF ID: R180008.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 5.8351(18)Å    b: 12.9822(47)Å    c: 5.6563(21)Å
alpha: 90°    beta: 107.498(19)°    gamma: 90°   Volume: 408.645(74)Å3    Crystal System: monoclinic
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REFERENCES for Wendwilsonite

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]

Keller P, Hess H, Riffel H (1981) Die kristallstrukturen von zwei neuen calcium-zink-arsenat-mineralen von Tsumeb/Nambia, Zeitschrift für Kristallographie, 156, 70-71   [view file]

Dunn P J, Sturman B D, Nelen J A (1987) Wendwilsonite, the Mg analogue of roselite, from Morocco, New Jersey, and Mexico, and new data on roselite, American Mineralogist, 72, 217-221   [view file]

Fleck M, Kolitsch U, Hertweck B (2002) Natural and synthetic compounds with kröhnkite-type chains: review and classification, Zeitschrift für Kristallographie, 217, 435-443

Kolitsch U, Fleck M (2006) Third update on compounds with kröhnkite-type chains: the crystal structure of wendwilsonite [Ca2Mg(AsO4)2·2H2O] and the new triclinic structure of synthetic AgSc(CrO4)2·2H2O and M2Cu(Cr2O7)2·2H2O (M= Rb, Cs), European Journal of Mineralogy, 18, 471-482

Frost R L, Scholz R, López A, Belotti F M, Xi Y (2014) Structural characterization and vibrational spectroscopy of the arsenate mineral wendwilsonite, Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 118, 737-743