Petermegawite R210008

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Record 107 of 126  


Name: Petermegawite
RRUFF ID: R210008
Ideal Chemistry: Al6(Se4+O3)3[SiO3(OH)](OH)9·10H2O
Locality: El Dragon mine, Potosi, Bolivia
Source: Bob Jenkins [view label]
Owner: RRUFF
Description: Colorless bladed or tabular crystals, associated with blue chalcomenite and greenish blue clinochalcomenite.
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Not in a structural group (126) ]
CHEMISTRY 
RRUFF ID: R210008.2
Sample Description: Microprobe Fragment
Measured Chemistry: Al6.00[(Se0.893S0.113)Σ1.006O3]3[(Si0.90Al0.07)Σ0.97O3(OH)](OH)9·9.43H2O
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R210008
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R210008 Powder X-ray diffraction data
Cell Refinement Output: a: 16.2501(4)Å    b: 10.9652(3) Å    c: 15.3516(4)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 2735.47(9)Å3    Crystal System: orthorhombic
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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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REFERENCES for Petermegawite

Miyawaki R, Hatert F, Pasero M, Mills S J (2022) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 64, Mineralogical Magazine, 86, 178-182   [view file]