Ferrofettelite R100124
Name: Ferrofettelite
RRUFF ID: R100124
Ideal Chemistry: [Ag6As2S7][Ag10FeAs2S8]
Locality: Nieder-Berbach, Odenwald, Germany
Source: William W. Pinch [view label]
Owner: RRUFF
Description: Dark reddish thin platy crystals associated with proustite and xanthoconite. Analysis of this sample is reported in Bindi et al (2012) and Bindi and Downs (2022). This is the type specimen.
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Fettelite (3) ]
CHEMISTRY 
RRUFF ID: R100124.2
Sample Description: Microprobe Fragment
Measured Chemistry: Ag16.04Fe0.55Hg0.40Cu0.02Sb0.03As3.94S15.02
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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RRUFF ID: R100124
Wavelength:
Sample Description: Unoriented Raman on the primary 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: R100124.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 26.000(2)Å    b: 15.067(2)Å    c: 15.512(1)Å
alpha: 90°    beta: 90.29(1)°    gamma: 90°   Volume: 6076.6(8)Å3    Crystal System: monoclinic
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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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DIF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Ferrofettelite

American Mineralogist Crystal Structure Database Record: [view record]

Bindi L, Downs R T, Spry P G, Pinch W W, Menchetti S (2012) A chemical and structural re-examination of fettelite samples from the type locality, Odenwald, southwest Germany, Mineralogical Magazine, 76, 551-566   [view file]

Bindi L, Downs R T (2022) Ferrofettelite, [Ag6As2S7][Ag10FeAs2S8], a new sulfosalt from the Glasberg quarry, Odenwald, Germany, Mineralogical Magazine, 86, 340-345   [view file]

Miyawaki R, Hatert F, Pasero M, Mills S J (2022) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) - Newsletter 65, European Journal of Mineralogy, 34, 143-148   [view file]