Important Update News
The RRUFF Project (rruff.info) is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional.
We are grateful to NASA for the funding of this effort.
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Name: Groutite RRUFF ID: R070583 Ideal Chemistry: Mn3+O(OH) Locality: Marble Canyon, Gunnison County, Colorado, USA Source: James Shigley [view label] Owner: RRUFF Description: Black elongated prismatic Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
Mineral Group: [ Diaspore (11) ] | ||
Quick search: [ All Groutite samples (2) ] |
RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R070583.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 10.682(3)Å b: 2.8705(3)Å c: 4.555(1)Å alpha: 90° beta: 90° gamma: 90° Volume: 139.68(5)Å3 Crystal System: orthorhombic |
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REFERENCES for Groutite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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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] |
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Gruner J W (1947) Groutite, HMnO2, a new mineral of the diaspore-goethite group, American Mineralogist, 32, 654-659 [view file] |
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Fleischer M (1948) New mineral names, American Mineralogist, 33, 384-386 [view file] |
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Dent Glasser L S, Ingram L (1968) Refinement of the crystal structure of groutite, α-MnOOH, Acta Crystallographica, B24, 1233-1236 |
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Majmundar H H (1969) Ramsdellite and groutite from Nova Scotia, The Canadian Mineralogist, 9, 718-720 [view file] |
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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 |
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Post J E, McKeown D A, Heaney, P J (2020) Raman spectroscopy study of manganese oxides: Tunnel structures, American Mineralogist, 105, 1175-1190 [view file] |
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