Whiteite-(CaFeMg) R130055

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Name: Whiteite-(CaFeMg)
RRUFF ID: R130055
Ideal Chemistry: CaFe2+Mg2Al2(PO4)4(OH)2·8H2O
Locality: Tip Top mine, Custer, South Dakota, USA
Source: Thomas A. Loomis TL-22 [view label]
Owner: RRUFF
Description: Colorless to pale yellow blocky hexagonal crystals, associated with R130054, roscherite
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
Mineral Group: [ Jahnsite (7) ]
Quick search: [ All Whiteite-(CaFeMg) samples (2) ]
Sample Description: Unoriented sample

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RRUFF ID: R130055
Sample Description: Unoriented sample
Instrument settings: Almega 532nm @ 100% of 150mW
RRUFF ID: R130055.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 14.991(3)Å    b: 7.022(1)Å    c: 10.002(2)Å
alpha: 90°    beta: 110.28(3)°    gamma: 90°   Volume: 987.6(5)Å3    Crystal System: monoclinic
  File Type Information Close
Calculated diffraction file.

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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Whiteite-(CaFeMg)

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]

Moore P B, Ito J (1978) I. Whiteite, a new species, and a proposed nomenclature for the jahnsite-whiteite complex series. II. New data on xanthoxenite. III. Salmonsite discredited, Mineralogical Magazine, 42, 309-323   [view file]

Fleischer M, Chao G Y, Pabst A (1979) New mineral names, American Mineralogist, 64, 464-467   [view file]

Capitelli F, Chita G, Cavallo A, Bellatreccia F, Ventura G D (2011) Crystal structure of whiteite-(CaFeMg) from Crosscut Creek, Canada, Zeitschrift für Kristallographie, 226, 731-738

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]