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Name: Potassic-arfvedsonite RRUFF ID: R050516 Ideal Chemistry: KNa2(Fe2+4Fe3+)Si8O22(OH)2 Locality: Red Wine complex, Labrador, Newfoundland, Canada Source: Frank Hawthorne Owner: RRUFF Description: Black fragments, structure is published in Can Min 14 (1976) 346-356 Status: The identification of this mineral is confirmed by single-crystal X-ray diffraction and chemical analysis. |
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Mineral Group: [ amphibole (107) ] |
CHEMISTRY | ||||||||||
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RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R050516.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 10.007(2)Å b: 18.077(2)Å c: 5.332(1)Å alpha: 90° beta: 104.101(7)° gamma: 90° Volume: 935.48Å3 Crystal System: monoclinic |
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REFERENCES for Potassic-arfvedsonite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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Nickel E H, Mark E (1965) Arfvedsonite and aegirineaugite from Seal Lake, Labrador, The Canadian Mineralogist, 8, 185-197 [view file] |
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Hawthorne F C (1976) The crystal chemistry of amphiboles: V. The structure and chemistry of arfvedsonite, The Canadian Mineralogist, 14, 346-356 [view file] |
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Burke E A J, Leake B E (2004) "Named amphiboles": a new category of amphiboles recognized by the International Mineralogical Association (IMA), and the proper order of prefixes to be used in amphibole names, The Canadian Mineralogist, 42, 1881-1883 [view file] |
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Pekov I V, Chukanov N V, Lebedeva Y S, Pushcharovsky D Y, Ferraris G, Gula A, Zadov A E, Novakova A A, Petersen O V (2004) Potassicarfvedsonite, KNa2Fe2+4Fe3+Si8O22(OH)2, a K-dominant amphibole of the arfvedsonite series from agpaitic pegmatites - Mineral data, structure refinement and disorder in the A site, Neues Jahrbuch für Mineralogie, Monatshefte, 2004, 555-574 |
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Piilonen P C, Ercit T S (2005) New mineral names, American Mineralogist, 90, 1466-1469 [view file] |
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Pekov I V (2007) New minerals from former Soviet Union countries, 1998-2006: new minerals approved by the IMA commission on new minerals and mineral names, Mineralogical Almanac, 11, 9-51 [view file] |
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Hawthorne F C, Oberti R, Harlow G E, Maresch W V, Martin R F, Schumacher J C, Welch M D (2012) Nomenclature of the amphibole supergroup, American Mineralogist, 97, 2031-2048 [view file] |
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