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Fluorcalcioroméite R120140
Name: Fluorcalcioroméite
RRUFF ID: R120140
Ideal Chemistry: (Ca,Na)2Sb5+2O6F
Locality: Starlera mine, Starlera Valley, Ferrera, Hinterrhein district, Grishun, Switzerland
Source: Marcelo Andrade [view label]
Owner: RRUFF
Description: Brownish-yellow octahedra, associated with hematite, calcite and quartz. Type specimen (Atencio et al (2013))
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Groups: [ pyrochlore (28) ] [ Romeite (2) ]
CHEMISTRY 
RRUFF ID: R120140
Sample Description: microprobe fragment
Measured Chemistry: (Ca1.16Na0.56Fe0.03Mn0.03)(Sb1.98Al0.01W0.01)2O6[F0.62(OH)0.35]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R120140
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
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Raman Data (Processed)
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R120140.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 10.2987(8)Å    b: 10.2987(8)Å    c: 10.2987(8)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 1092.3(2)Å3    Crystal System: cubic
  File Type Information Close
Calculated diffraction file.

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

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DIF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Fluorcalcioroméite

American Mineralogist Crystal Structure Database Record: [view record]

Atencio D, Ciriotti M E, Andrade M B (2013) Fluorcalcioroméite, (Ca,Na)2Sb25+(O,OH)6F, a new roméite-group mineral from Starlera mine, Ferrera, Grischun, Switzerland: description and crystal structure, Mineralogical Magazine, 77, 467-473   [view file]

Williams P A, Hatert F, Pasero M, Mills S J (2013) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 16. New minerals and nomenclature modifications approved in 2013, Mineralogical Magazine, 77, 2695-2709   [view file]

Belakovskiy D I, Cámara F, Gagne O C, Uvarova Y (2015) New mineral names, American Mineralogist, 100, 2352-2362   [view file]

Bosi F, Christy A G, Hålenius U (2017) Crystal-chemical aspects of the roméite group, A2Sb2O6Y, of the pyrochlore supergroup, Mineralogical Magazine, 81, 1287-1302