Crednerite R070404



Name: Crednerite
RRUFF ID: R070404
Ideal Chemistry: CuMnO2
Locality: Merehead, Mendip Hills, Somerset, England, United Kingdom
Source: Michael Scott S102157 [view label]
Owner: RRUFF
Description: Platy iron-black striated crystals with well-defined cleavage planes
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
CHEMISTRY 
RRUFF ID: R070404.2
Sample Description: Microprobe Fragment
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R070404
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
POWDER DIFFRACTION 
RRUFF ID: R070404.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 5.562(5)Å    b: 2.882(2)Å    c: 5.890(6)Å
alpha: 90°    beta: 104.4(1)°    gamma: 90°   Volume: 91.45(8)Å3    Crystal System: monoclinic
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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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REFERENCES for Crednerite

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]

Rammelsberg C (1849) Ueber das mangankupfererz von Friedrichsrode, Zusatz zu der vorhergehenden abhandlung, Annalen der Physik und Chemie, 74, 559-562   [view file]

Wherry E T (1924) Redefinition of species, American Mineralogist, 9, 97-98   [view file]

Kondrashev I D (1959) The crystal structure and composition of crednerite, CuMnO2, Soviet Physics - Crystallography, 3, 703-706   [view file]

Fleischer M (1966) New mineral names, American Mineralogist, 51, 1815-1820   [view file]

Töpfer J, Trari M, Gravereau P, Chaminade J P, Doumerc J P (1995) Crystal growth and reinvestigation of the crystal structure of crednerite, CuMnO2, Zeitschrift für Kristallographie, 210, 184-187   [view file]