Fluoro-richterite R040019

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Record 32 of 105  

Name: Fluoro-richterite
RRUFF ID: R040019
Ideal Chemistry: Na(NaCa)Mg5Si8O22F2
Locality: Wilberforce, Ontario, Canada
Source: University of Arizona Mineral Museum 11037 [view label]
Owner: RRUFF
Description: Brown prismatic crystals
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Mineral Group: [ amphibole (105) ]
Quick search: [ All Fluoro-richterite samples (2) ]
CHEMISTRY 
RRUFF ID: R040019.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Na0.59K0.27   0.14)Σ=1(Ca1.30Na0.70)Σ=2(Mg4.67Fe0.17Fe3+0.10Ti0.03Mn0.02Al0.01)Σ=5(Si7.67Al0.33)Σ=8(F1.12(OH)0.88)Σ=2; OH estimated by charge balance
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Sample is oriented, mounted onto a pin and polished
Pin ID: L00205
Orientation: Laser parallel to  c   [0 0 1].     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: R040019
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 65% of 150mW
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R040019.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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POWDER DIFFRACTION 
RRUFF ID: R040019.1
Sample Description: Powder
Cell Refinement Output: a: 9.8859(5)Å    b: 18.0004(8)Å    c: 5.2731(3)Å
alpha: 90.°    beta: 104.623(5)°    gamma: 90.°   Volume: 907.98(6)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 Fluoro-richterite

American Mineralogist Crystal Structure Database Record: [view record]

Bazhenov A G, Nedosekova I L, Petersen E U (1993) Fluorrichterite Na2Ca(Mg, Fe)5[Si8O22](F, OH)2 — a new mineral species in the amphibole group, Zapiski Vserossijskogo Mineralogicheskogo Obshchestva, 122, issue 3 98-102   [view file]

Jambor J L, Puziewicz J, Roberts A C (1995) New mineral names, American Mineralogist, 80, 404-409   [view file]

Robert J L, Della Ventura G, Hawthorne F C (1999) Near-infrared study of short-range disorder of OH and F in monoclinic amphiboles, American Mineralogist, 84, 86-91   [view file]

Burke E A J, Leake B E (2004) "Named amphiboles": a new category of amphiboles recognized by the International Mineralogical Association (IMA), and the proper order of prefixes to be used in amphibole names, The Canadian Mineralogist, 42, 1881-1883   [view file]

Hawthorne F C, Oberti R, Martin R F (2006) Short-range order in amphiboles from the Bear Lake diggings, Ontario, The Canadian Mineralogist, 44, 1171-1179   [view file]

Hawthorne F C, Oberti R, Harlow G E, Maresch W V, Martin R F, Schumacher J C, Welch M D (2012) Nomenclature of the amphibole supergroup, American Mineralogist, 97, 2031-2048   [view file]

Oberti R, Boiocchi M, Hawthorne F C, Cámara F, Ciriotti M E, Berge S A (2015) Ti-rich fluoro-richterite from Kariåsen (Norway): the oxo-component and the use of Ti4+ as a proxy, The Canadian Mineralogist, 53, 285-294