Milarite R070464

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Record 2 of 3  


Name: Milarite
RRUFF ID: R070464
Ideal Chemistry: KCa2(Be2AlSi12)O30·H2O
Locality: Rössing Mine, Arandis, Swakopmund District, Namibia
Source: Michael Scott S105271 [view label]
Owner: RRUFF
Description: Fragments from a pale yellow green hexagonal prism
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ Milarite (18) ]
Quick search: [ All Milarite samples (3) ]
CHEMISTRY 
RRUFF ID: R070464.2
Sample Description: Microprobe Fragment
Measured Chemistry: (K1.11Na0.21)Σ=1.32Ca2.00(Be2.36Al0.64)Σ=3Si12.00O30·H2O; H2O assumed ideal from stoichiometry; BeO estimated by difference
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R070464
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R070464.1
Sample Description: Powder
Cell Refinement Output: a: 10.3995(2)Å    b: 10.3995(2)Å    c: 13.7839(7)Å
alpha: 90°    beta: 90°    gamma: 120°   Volume: 1291.00(6)Å3    Crystal System: hexagonal
  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.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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Cell Refinement Data
Cell Refinement Output Data
DIF File
X-ray Data (XY - Processed)
RRUFF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Milarite

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]

Kenngott A (1870) Mittheilungen an Professor G. Leonhard, Neues Jahrbuch für Mineralogie, Geologie und Palaontologie, 1870, 80-81   [view file]

Goβner B, Muβgnug F (1930) Über Alstonit und Milarit, Centralblatt für Mineralogie, Geologie und Paläontologie, 1930, 220-238

Palache C (1931) On the presence of beryllium in milarite, American Mineralogist, 16, 469-470   [view file]

Belov N V (1957) New silicate structures, Acta Crystallographica, 10, 757-758

Černý P, Hawthorne F C, Jarosewich E (1980) Crystal chemistry of milarite, The Canadian Mineralogist, 18, 41-57   [view file]

Armbruster T, Bermanec V, Wenger M, Oberhansli R (1989) Crystal chemistry of double-ring silicates: Structure of natural and dehydrated milarite at 100 K, European Journal of Mineralogy, 1, 353-362

Černý P, Hawthorne F C, Jambor J L, Grice J D (1991) Yttrian milarite, The Canadian Mineralogist, 29, 533-541   [view file]

Roth P (2007) Milarite, in Minerals first discovered in Switzerland and minerals named after Swiss individuals Kristallografik Verlag Achberg Germany 112-113

Gagné O C, Hawthorne F C (2016) Chemographic exploration of the milarite-type structure, The Canadian Mineralogist, 54, 1229-1247

Hawthorne F C, Sokolova E, Pautov L A, Agakhanov A A, Karpenko V Y (2016) Refinement of the crystal structure of berezanskite, Ti2◻2KLi3(Si12O30), Mineralogical Magazine, 80, 733-737