Robertsite R130045

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Record 5 of 5  

Name: Robertsite
RRUFF ID: R130045
Ideal Chemistry: Ca2Mn3+3O2(PO4)3·3H2O
Locality: Tip Top mine, Custer, South Dakota, USA
Source: Thomas A. Loomis TL-17 [view label]
Owner: RRUFF
Description: Dark red plates, associated with quartz and apatite
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
Mineral Group: [ Arseniosiderite (5) ]
Quick search: [ All Robertsite samples (2) ]
Sample Description: Unoriented sample

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RRUFF ID: R130045
Sample Description: Unoriented sample
Instrument settings: Almega 532nm @ 100% of 150mW
RRUFF ID: R130045.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 17.3724(6)Å    b: 19.4520(7)Å    c: 11.2776(4)Å
alpha: 90°    beta: 96.674(2)°    gamma: 90°   Volume: 3785.2(2)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 Robertsite

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 (1974) I. Jahnsite, segelerite, and robertsite, three new transition metal phosphate species II. Redefinition of overite, an isotype of segelerite III. Isotypy of robertsite, mitridatite, and arseniosiderite, American Mineralogist, 59, 48-59   [view file]

Van Kauwenbergh S J, Cooper-Fleck M, Williams M R (1988) The occurrence of robertsite in a sedimentary phosphate ore from Thailand, Mineralogical Magazine, 52, 505-508   [view file]

Jambor J L, Burke E A J (1989) New mineral names, American Mineralogist, 74, 1399-1404   [view file]

Andrade M B, Morrison S M, Di Domizio A J, Feinglos M N, Downs R T (2012) Robertsite, Ca2MnIII3O2(PO4)3·3H2O, Acta Crystallographica, E68, i74-i75   [view file]