Fluornatromicrolite R060589
Name: Fluornatromicrolite
RRUFF ID: R060589
Ideal Chemistry: (Na,Ca,Bi)2Ta2O6F
Locality: Quixaba mine, Frei Martinho, Paraíba, Northeast Region, Brazil
Source: Michael Scott S100787 [view label]
Owner: RRUFF
Description: Dark green octahedron embedded in white albite matrix
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Quick search: [ All Fluornatromicrolite samples (2) ]
CHEMISTRY 
RRUFF ID: R060589.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Na1.04Ca0.71Bi0.18   0.07)Σ=2Ta2.00O6(F0.93(OH)0.07)Σ=1 ; OH estimated by difference and charge balance
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (Processed)
RRUFF File
Raman Data (RAW) View Graph
RRUFF File
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POWDER DIFFRACTION 
RRUFF ID: R060589.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 10.434(1)Å    b: 10.434(1)Å    c: 10.434(1)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 1136.1(1)    Crystal System: cubic
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REFERENCES for Fluornatromicrolite

American Mineralogist Crystal Structure Database Record: [view record]

Atencio D, Andrade M B, Christy A G, Gieré R, Kartashov P M (2010) The pyrochlore supergroup of minerals: nomenclature, The Canadian Mineralogist, 48, 673-698

Witzke T, Steins M, Doering T, Schuckmann W, Wegner R, Pöllmann H (2011) Fluornatromicrolite, (Na,Ca,Bi)2Ta2O6F, a new mineral species from Quixaba, Paraíba, Brazil, The Canadian Mineralogist, 49, 1105-1110