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Name: Lombardoite RRUFF ID: R220033 Ideal Chemistry: Ba2Mn3+(AsO4)2(OH) Locality: Valletta mine, Maira Valley, Piedmont, Italy Source: Fernando Cámara Owner: Fernando Cámara Description: Dark red platy tablets associated with quartz. Type sample from Cámara et al (2022) Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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Mineral Group: [ Brackebuschite (17) ] |
CHEMISTRY | ||||||||
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RAMAN SPECTRUM | ||||||||||||
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POWDER DIFFRACTION | ||||||
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RRUFF ID: | R220033 | |||||
Sample Description: | Cell parameters are from powder data, profile is calculated | |||||
Cell Refinement Output: |
a: 7.883(2)Å b: 6.146(1)Å c: 9.101(2)Å alpha: 90° beta: 112.52(1)° gamma: 90° Volume: 407.3(2)Å3 Crystal System: monoclinic |
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REFERENCES for Lombardoite | |
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Hålenius U, Hatert F, Pasero M, Mills S J (2016) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 33. New minerals and nomenclature modifications approved in 2016, Mineralogical Magazine, 80, 1135-1144 [view file] |
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Cámara F, Baratelli l, Ciriotti M E, Nestola F, Piccoli G C, Bosi F, Bittarello E, Hålenius U, Balestra C (2022) As-bearing new mineral species from Valletta mine, Maira Valley, Piedmont, Italy: IV. Lombardoite, Ba2Mn3+(AsO4)2(OH) and aldomarinoite, Sr2Mn3+(AsO4)2(OH), description and crystal structure, Mineralogical Magazine, 86, 447-458 |
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Celestian A J (2023) New mineral names: Arsenic and lead, American Mineralogist, 108, 634-636 [view file] |
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