Important Update News
The RRUFF Project 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. Existing RRUFF.info links will resolve to the new site after RRUFF.net is officially released.
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Name: Graeserite RRUFF ID: R110054 Ideal Chemistry: Fe3+4Ti3As3+O13(OH) Locality: Binntal, Wallis, Switzerland Source: Bob Jenkins [view label] Owner: RRUFF Description: Black prismatic crystals, associated with brown rutile, yellow muscovite, green clinochlore and colorless orthoclase Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R110054.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 5.0143(4)Å b: 14.260(2)Å c: 7.1716(8)Å alpha: 90° beta: 105.254(7)° gamma: 90° Volume: 494.7(2)Å3 Crystal System: monoclinic |
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REFERENCES for Graeserite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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Berlepsch P, Armbruster T (1998) The crystal structure of Pb2+-bearing graeserite, Pb0.14(Fe,Ti)7AsO12+x(OH)2-x, a mineral of the derbylite group, Schweizerische Mineralogische und Petrographische Mitteilungen, 78, 1-9 |
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Krzemnicki M S, Reusser E (1998) Graeserite, Fe4Ti3AsO13(OH), a new mineral species of the derbylite group from the Monte Leone Nappe, Binntal Region, Western Alps, Switzerland, The Canadian Mineralogist, 36, 1083-1104 [view file] |
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Jambor J L, Roberts A C (1999) New mineral names, American Mineralogist, 84, 990-994 [view file] |
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Roth P (2007) Graeserite, in Minerals first discovered in Switzerland and minerals named after Swiss individuals Kristallografik Verlag Achberg Germany 76-77 |
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Biagioni C, Bonaccorsi E, Perchiazzi N, Hålenius U, Zaccarini F (2020) Derbylite and graeserite from the Monte Arsiccio mine, Apuan Alps, Tuscany, Italy: occurrence and crystal-chemistry, Mineralogical Magazine, 84, 766-777 [view file] |
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