Jahnsite-(CaMnMn) R080072

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Record 1158 of 2398  


Name: Jahnsite-(CaMnMn)
RRUFF ID: R080072
Ideal Chemistry: CaMn2+Mn2+2Fe3+2(PO4)4(OH)2·8H2O
Locality: Tip Top mine, Custer Country, South Dakota, USA
Source: Tom Loomis TL-42 [view label]
Owner: RRUFF
Description: Pale yellow blocky to thick tabular crystals associated with scholzite, R080068
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
Mineral Group: [ Jahnsite (7) ]
CHEMISTRY 
RRUFF ID: R080072.2
Sample Description: Microprobe Fragment
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R080072
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
POWDER DIFFRACTION 
RRUFF ID: R080072.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 14.81(2)Å    b: 7.158(7)Å    c: 9.873(9)Å
alpha: 90°    beta: 108.31(4)°    gamma: 90°   Volume: 994(1)Å3    Crystal System: monoclinic
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REFERENCES for Jahnsite-(CaMnMn)

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]

Grice J D, Dunn P J, Ramik R A (1990) Jahnsite-(CaMnMn), a new member of the whiteite group from Mangualde, Beira, Portugal, American Mineralogist, 75, 401-404   [view file]

Grey I E, Mumme W G, Neville S M, Wilson N C, Birch W D (2010) Jahnsite - whiteite solid solutions and associated minerals in the phosphate pegmatite at Hagendorf-Süd, Bavaria, Germany, Mineralogical Magazine, 74, 969-978   [view file]

Grey I E, Keck E, Macrae C M, Glenn A M, Mumme W G, Kampf A R, Cashion J D (2018) Secondary Zn-bearing phosphate minerals associated with alteration of phosphophyllite at Hagendorf-Süd, Bavaria, European Journal of Mineralogy, 30, 1007-1020