Franksousaite R210012

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Record 1523 of 4131  


Name: Franksousaite
RRUFF ID: R210012
Ideal Chemistry: PbCu(Se6+O4)(OH)2
Locality: El Dragon mine, Potosi, Bolivia
Source: Jim McGlasson #9213 [view label]
Owner: RRUFF
Description: Pale blue prismatic crystal included in colorless, euhedral anglesite. Type specimen.
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Linarite (8) ]
CHEMISTRY 
RRUFF ID: R210012.2
Sample Description: Microprobe Fragment
Measured Chemistry: Pb1.02Cu0.98[(Se0.84S0.17)O4)](OH)2 ; calculated on the basis of 6 O apfu.
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R210012
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 50% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R210012
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 9.8208(3)Å    b: 5.7340(2)Å    c: 4.74980(10) Å
alpha: 90°    beta: 102.683(2)°    gamma: 90°   Volume: 260.947(13)Å3    Crystal System: monoclinic
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REFERENCES for Franksousaite

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]

Yang H, McGlasson J A, Gibbs R B, Downs R T (2022) Franksousaite, PbCu(Se6+O4)(OH)2, the Se6+ analogue of linarite, a new mineral from the El Dragón mine, Potosí, Bolivia, Mineralogical Magazine, 86, 792-798