Pyrolusite R120169

Name: Pyrolusite
RRUFF ID: R120169
Ideal Chemistry: MnO2
Locality: Unnamed prospect, Tal-Tal, Antofagasta Region, Chile
Source: Bob Jenkins [view label]
Owner: RRUFF
Description: Aggregate of steel-gray prismatic crystals
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
Mineral Group: [ Rutile (18) ]
Quick search: [ All Pyrolusite samples (3) ]
Sample Description: Unoriented Raman on the primary sample

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RRUFF ID: R120169
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
RRUFF ID: R120169.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 4.408(6)Å    b: 4.408(6)Å    c: 2.877(5)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 55.88(2)Å3    Crystal System: tetragonal
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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 Pyrolusite

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]

Haidinger W (1827) Description of pyrolusite, or prismatic manganese ore, The Edinburgh Journal of Science, 9, 304-309   [view file]

Turner E (1828) Chemical examination of the oxides of manganese. Part II. On the composition of the ores of manganese described by Mr. Haidinger, The Philosophical Magazine, 4, 96-104   [view file]

Fleischer M, Richmond W E, Evans H T (1962) Studies of the manganese oxides. V. Ramsdellite, MnO2, an orthorhombic dimorph of pyrolusite, American Mineralogist, 47, 47-58   [view file]

International Mineralogical Association (1982) International Mineralogical Association: Commission on new minerals and mineral names, Mineralogical Magazine, 46, 513-514   [view file]

Kohler T, Armbruster T, Libowitzky E (1997) Hydrogen bonding and Jahn-Teller distortion in groutite, α-MnOOH, and manganite, γ-MnOOH, and their relations to the manganese dioxides ramsdellite and pyrolusite, Journal of Solid State Chemistry, 133, 486-500