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Malhmoodite R200009

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Name: Malhmoodite
RRUFF ID: R200009
Ideal Chemistry: Fe2+Zr(PO4)2·4H2O
Locality: Scott's R.Q. mine, Custer Co., South Dakota, U.S.A.
Source: Tom Loomis [view label]
Owner: RRUFF
Description: Yellowish flat lying plates, divergent groups on matrix.
Status: The identification of this mineral has been confirmed by X-ray diffraction.
Mineral Group: [ Malhmoodite (3) ]
Quick search: [ All Malhmoodite samples (2) ]
CHEMISTRY 
RRUFF ID: R200009.2
Sample Description: Microprobe Fragment
Measured Chemistry: Fe1.06(Zr1.10Hf0.03)Σ1.13[(P1.85As0.02)Σ1.87O4]2·4H2O. Microprobe also detected trace UO2.
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: R200009
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 25% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R200009
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 5.31200(10)Å    b: 9.3419(3) Å    c: 9.7062(3)Å
alpha: 97.6111(13)°    beta: 91.9796(11)°    gamma: 90.3628(12)°   Volume: 477.10(2)Å3    Crystal System: triclinic
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REFERENCES for Malhmoodite

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]

Milton C, McGee J J, Evans H T (1993) Mahlmoodite, FeZr(PO4)2·4H2O, a new iron zirconium phosphate mineral from Wilson Springs, Arkansas, American Mineralogist, 78, 437-440   [view file]

Elton N J, Hooper J J (1995) A second occurrence of malhmoodite, from Cornwall, England, Mineralogical Magazine, 59, 166-168   [view file]

Grice J D, Ferraris G (2003) New minerals approved in 2002 and nomenclature modifications approved in 1998-2002 by the Commission on the New Minerals and Mineral Names, International Mineralogical Association, The Canadian Mineralogist, 41, 795-802   [view file]

Yang H, Gu X, Loomis T, Gibbs R B, Downs R T (2022) The crystal structure of malhmoodite from Custer, South Dakota, USA, The Canadian Mineralogist, 60, 485-492   [view file]