Gratonite R050365


 Name: Gratonite
RRUFF ID: R050365
Ideal Chemistry: Pb9As4S15
Locality: Cerro de Pasco, Peru
Source: University of Arizona Mineral Museum 10998 [view label]
Owner: RRUFF
Description: Dark lead gray aggregate, including single crystals
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis
Quick search: [ All Gratonite samples (2) ]
CHEMISTRY 
RRUFF ID: R050365.2
Sample Description: Microprobe Fragment
Measured Chemistry: Pb9.00As4.00S15.00
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R050365
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 65% of 150mW
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Raman Data (Processed)
RRUFF File
Raman Data (RAW) View Graph
RRUFF File
INFRARED SPECTRUM (Attenuated Total Reflectance) 
RRUFF ID: R050365.1
Instrument settings: SensIR Durascope on a Nicolet Magna 860 FTIR
Resolution:
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Infrared Data (Processed)
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POWDER DIFFRACTION 
RRUFF ID: R050365.1
Sample Description: Powder
Cell Refinement Output: a: 17.721(2)Å    b: 17.721(2)Å    c: 7.797(1)Å
alpha: 90.°    beta: 90.°    gamma: 120.°   Volume: 2120.9(5)Å3    Crystal System: hexagonal
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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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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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Cell Refinement Data
Cell Refinement Output Data
DIF File
X-ray Data (XY - Processed)
RRUFF File
X-ray Data (XY - RAW) View Graph
RRUFF File
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REFERENCES for Gratonite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Gamble D (1938) New mineral discovered: Rochester and Harvard fail to link it with any known species, New York Times, Dec 28, 1938, 17-17

Palache C, Fisher D J (1939) Gratonite - preliminary description of a new mineral from Cerro de Pasco, Peru, American Mineralogist, 24, 136-136   [view file]

Palache C, Fisher D J (1940) Gratonite - A new mineral from Cerro de Pasco, Peru, American Mineralogist, 25, 255-265   [view file]

Rust G W (1940) Geologic occurrence of gratonite at Cerro de Pasco, Peru, American Mineralogist, 25, 266-270   [view file]

Rösch H (1963) Zur kristallstruktur des gratonits - 9PbS·2As2S3, Neues Jahrbuch für Mineralogie, Abhandlungen, 99, 307-337

Ribár B, Nowacki W (1969) Neubestimmung der kristallstruktur von gratonit, Pb9As4S15, Zeitschrift für Kristallographie, 128, 321-338   [view file]