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Diegogattaite R120156

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Record 1115 of 4216  


Name: Diegogattaite
RRUFF ID: R120156
Ideal Chemistry: Na2CaCu2Si8O20·H2O
Locality: Wessels mine, Kalahari manganese field, Northern Cape Province, South Africa
Source: Marcus Origlieri
Owner: RRUFF
Description: Lighter greenish blue massive, associated with darker blue wesselsite and quartz
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
Mineral Group: [ Not in a structural group (133) ]
CHEMISTRY 
RRUFF ID: R120156.2
Sample Description: Microprobe Fragment
Measured Chemistry: (Na1.98Mg0.01)Σ=1.99(Ca0.98Cu0.02)Σ=1.00Cu2.00Si8O20.00·H2O; The mineral is medium gray, associated with wesselsite (white) and quartz (dark gray); Normalized to 8 Si atoms; water assumed from crystal structure solution
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: R120156
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R120156.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 12.2377(4)Å    b: 15.7441(5)Å    c: 10.5305(3)Å
alpha: 90°    beta: 125.156(2)°    gamma: 90°   Volume: 1658.83(7)Å3    Crystal System: monoclinic
  File Type Information Close
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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REFERENCES for Diegogattaite

American Mineralogist Crystal Structure Database Record: [view record]

Rumsey M S, Welch M D, Kampf A R, Spratt J (2013) Diegogattaite, Na2CaCu2Si8O20·H2O: a new nanoporous copper sheet silicate from Wessels Mine, Kalahari Manganese Fields, Republic of South Africa, Mineralogical Magazine, 77, 3155-3162   [view file]

Welch M D, Rumsey M S (2013) A new naturally-occurring nanoporous copper sheet-silicate with 6482 cages related to synthetic "CuSH" phases, Journal of Solid State Chemistry, 203, 260-265

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, Cámara F, Uvarova Y, Gagne O C (2014) New mineral names, American Mineralogist, 99, 1806-1813