Varulite R160052

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Record 20 of 22  


Name: Varulite
RRUFF ID: R160052
Ideal Chemistry: Na2Mn(MnFe3+)(PO4)3
Locality: Nancy Pegmatite, Chacabuco Dept, San Luis, Argentina
Source: Donald Doell [view label]
Owner: RRUFF
Description: Dark green or brown crystals with good cleavage. Type sample of fupingqiuite
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Alluaudite (22) ]
Quick search: [ All Varulite samples (3) ]
CHEMISTRY 
RRUFF ID: R160052.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Na0.98Mn0.46Ca0.03)(Mn1.32Mg0.44Fe2+0.20Fe3+0.04)(Fe3+0.88Al0.12)(P1.00O4)3
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: R160052
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
POWDER DIFFRACTION 
RRUFF ID: R160052.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 11.9980(3) Å    b: 12.5059(3) Å    c: 6.4192(2) Å
alpha: 90°    beta: 114.631(1) °    gamma: 90°   Volume: 875.54(4) Å3    Crystal System: monoclinic
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REFERENCES for Varulite

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]

Foshag W F (1937) New mineral names, American Mineralogist, 22, 875-876   [view file]

Quensel P (1937) Minerals of the Varuträsk Pegmatite. I. The lithium - manganese phosphates, Geologiska Föreningens i Stockholm Förhandlingar, 59, 77-96   [view file]

Moore P B, Ito J (1979) Alluaudites, wyllieites, arrojadites: crystal chemistry and nomenclature, Mineralogical Magazine, 43, 227-235   [view file]

Dyar M D, Jawin E R, Breves E, Marchand G, Nelms M, Lane M D, Mertzman S A, Bish D L and Bishop J L (2014) Mössbauer parameters of iron in phosphate minerals: Implications for interpretation of martian data, American Mineralogist, 99, 914-942   [view file]

Hatert F (2019) A new nomenclature scheme for the alluaudite supergroup, European Journal of Mineralogy, 31, 807-822   [view file]