Kentrolite R060245



Name: Kentrolite
RRUFF ID: R060245
Ideal Chemistry: Pb2Mn3+2O2(Si2O7)
Locality: Percha Creek area, Hillsboro District, Sierra County, New Mexico, USA
Source: William W. Pinch [view label]
Owner: RRUFF
Description: Dark-purple colored single crystals associated with orange colored prismatic vanadinite and calcite
Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis.
CHEMISTRY 
RRUFF ID: R060245.2
Sample Description: Microprobe Fragment
Measured Chemistry: Pb2.00(Mn3+1.54Fe3+0.36Al0.10)Σ=2O2Si2.00O7
Microprobe Data File: [ Download Excel File ]
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R060245
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R060245.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 6.971(4)Å    b: 11.037(4)Å    c: 9.930(6)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 764.0(11)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 Kentrolite

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]

Damour A A, vom Rath G (1881) Ueber den Kentrolith, eine neue Mineralspecies, Zeitschrift für Krystallographie und Mineralogie, 5, 32-35   [view file]

Ito J, Frondel C (1966) Syntheses of the kentrolite-melanotekite series, Arkiv för Mineralogi och Geologi, 4, 387-390

Glasser F P (1967) New data on kentrolite and melanotekite: Ternary phase relations in the system PbO-Fe2O3-SiO2, American Mineralogist, 52, 1085-1093   [view file]

Welin E (1968) Notes on the mineralogy of Sweden 6. X-ray powder data for minerals from Långban and the related mineral deposits of Central Sweden, Arkiv för Mineralogi och Geologi, 4, 499-541

Moore P B, Sen Gupta P K, Shen J, Schlemper E O (1991) The kentrolite-melanotekite series, 4Pb2(Mn,Fe)3+2O2[Si2O7]: Chemical crystallographic relations, lone-pair splitting, and cation relation to 8URe2, American Mineralogist, 76, 1389-1399   [view file]

Dörsam G, Liebscher A, Wunder B, Franz G (2008) Crystal structures of synthetic melanotekite (Pb2Fe2Si2O9), kentrolite (Pb2Mn2Si2O9), and the aluminum analogue (Pb2Al2Si2O9), American Mineralogist, 93, 573-583   [view file]