Montebrasite R040062

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Record 272 of 476  

Name: Montebrasite
RRUFF ID: R040062
Ideal Chemistry: LiAl(PO4)(OH)
Locality: Hebron, Maine, USA
Source: University of Arizona Mineral Museum 8239 [view label]
Owner: RRUFF
Description: White massive
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Quick search: [ All Montebrasite samples (4) ]
CHEMISTRY 
RRUFF ID: R040062.2
Sample Description: Microprobe Fragment
Measured Chemistry: LiAl(PO4)((OH)0.62F0.38)
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented, mounted onto a pin and polished
Pin ID: M00438
Orientation: Laser parallel to  a*  (1 0 0).     Fiducial mark perpendicular to laser is parallel to  b   [0 1 0].
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Direction of polarization of laser relative to fiducial mark:
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R040062
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R040062.1
Sample Description: Powder
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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POWDER DIFFRACTION 
RRUFF ID: R040062.1
Sample Description: Powder
Cell Refinement Output: a: 6.7076(3)Å    b: 7.7202(4)Å    c: 6.9946(3)Å
alpha: 91.095(4)°    beta: 117.836(4)°    gamma: 91.530(4)°   Volume: 319.98(2)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.

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

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REFERENCES for Montebrasite

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]

Des Cloizeaux A (1871) Note sur la montebrasite, Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences, 73, 306-306   [view file]

Nel H J (1946) Petalite and amblygonite from Karibib, South West Africa, American Mineralogist, 31, 51-57   [view file]

Černá I, Černý P, Ferguson R B (1972) The Tanco pegmatite at Bernic Lake, Manitoba. III. Amblygonite-montebrasite, The Canadian Mineralogist, 11, 643-659   [view file]

Groat L A, Rausepp M, Hawthorne F C, Ercit T S, Sherriff B L, Hartman J S (1990) The amblygonite-montebrasite series: Characterization by single-crystal structure refinement, infrared spectroscopy, and multinuclear MAS-NMR spectroscopy, American Mineralogist, 75, 992-1008   [view file]

Shannon R D, Shannon R C, Medenbach O, Fischer R X (2002) Refractive index and dispersion of fluorides and oxides, Journal of Physical and Chemical Reference Data, 31, 931-970   [view file]

Rondeau B, Fritsch E, Lefevre P, Guiraud M, Fransolet A M, Lulzac Y (2006) A Raman investigation of the amblygonite—montebrasite series, The Canadian Mineralogist, 44, 1109-1117   [view file]

Dias L N, Pinheiro M V B, Moreira R L, Krambrock K, Guedes K J, Menezes L A D, Karfunkel J, Schnellrath J, Scholz R (2011) Spectroscopic characterization of transition metal impurities in natural montebrasite/amblygonite, American Mineralogist, 96, 42-52   [view file]

Simmons W B, Falster A U, Nizamoff J W, Freeman G (2019) Giant spodumene and montebrasite crystals from the Plumbago North pegmatite, Oxford County, Maine, The Canadian Mineralogist, 57, 795-797

Toledo J R, De Oliveira R, Dias L N, Chaves M L C, Karfunkel J, Scholz R, Pinheiro M V B, Krambrock K (2020) Radiation-induced defects in montebrasite: An electron paramagnetic resonance study of O hole and Ti3+ electron centers, American Mineralogist, 105, 1051-1059