Roscherite R130054

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Record 2 of 2  

Name: Roscherite
RRUFF ID: R130054
Ideal Chemistry: Ca2Mn2+5Be4(PO4)6(OH)4·6H2O
Locality: Tip Top mine, Custer, South Dakota, USA
Source: Thomas A. Loomis TL-21 [view label]
Owner: RRUFF
Description: Yellowish-brown spheroidal aggregates, associated with R130055 whiteite-(CaMnMg)
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ roscherite (9) ]
Quick search: [ All Roscherite samples (2) ]
RRUFF ID: R130054.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Ca1.95K0.04Sr0.02Ba0.01)1.02(Mn2.77Fe0.78Mg0.63Al0.16Zn0.07)4.41Be4(P1.03O4)6(OH)4ยท6H2O ; Lighter, middle part. Be content assumed ideal.
Microprobe Data File: [ Download Excel File ]
Sample Description: Unoriented sample

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RRUFF ID: R130054
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
RRUFF ID: R130054.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 16.006(4)Å    b: 11.916(4)Å    c: 6.553(3)Å
alpha: 90.24(3)°    beta: 94.69(3)°    gamma: 90.06(3)°   Volume: 1245.7(4)Å3    Crystal System: triclinic
  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 Roscherite

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]

Slavík F (1914) Neue Phosphate vom Greifenstein bei Ehrenfriedersdorf, Bulletin International. Resumés des Travaux Présentes. Classe des Sciences Mathématiques Naturelles et de la Médecine, 19, 108-123   [view file]

Lindberg M L (1958) The beryllium content of roscherite from the Sapacaia pegmatite mine, Minas Gerais, Brazil, and from other localities, American Mineralogist, 43, 824-838   [view file]

Fleischer M (1959) New mineral names, American Mineralogist, 44, 464-470   [view file]

Fanfani L, Nunzi A, Zananni P F, Zanzari A R (1975) The crystal structure of roscherite, Tschermaks Mineralogische und Petrographische Mitteilungen, 22, 266-277

Fleischer M, Cabri L J, Chao G Y, Pabst A (1978) New mineral names, American Mineralogist, 63, 424-427   [view file]

Fanfani L, Zanazzi P F, Zanzari A R (1979) The crystal structure of a triclinic roscherite, Tschermaks Mineralogische und Petrographische Mitteilungen, 24, 169-178

Atencio D, Coutinho J M V, Menezes L A D (2005) Roscherite-group minerals from Brazil, Axis, 1, Mineralogical Record 1-18

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]