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Name: Dravite RRUFF ID: R060280 Ideal Chemistry: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH) Locality: near Merelani, Tanzania Source: Herb Obodda 095 [view label] Owner: RRUFF Description: Green fragment Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis |
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Mineral Group: [ tourmaline (49) ] | ||
Quick search: [ All Dravite samples (6) ] |
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: | R060280.1 | |||||||
Sample Description: | Powder | |||||||
Cell Refinement Output: |
a: 15.9270(4)Å b: 15.9270(4)Å c: 7.1978(4)Å alpha: 90° beta: 90° gamma: 120° Volume: 1581.26(9)Å3 Crystal System: hexagonal |
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REFERENCES for Dravite | |
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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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Tschermak G (1884) Turmalin, in Lehrbuch der Mineralogie Alfred Hölder Wein, Austria 470-472 [view file] |
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Foit F F, Rosenberg P E (1979) The structure of vanadium-bearing tourmaline and its implications regarding tourmaline solid solutions, American Mineralogist, 64, 788-798 [view file] |
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Schmetzer K, Nuber B, Abraham K (1979) Zur Kristallchemie Magnesium-reicher Turmaline, Neues Jahrbuch für Mineralogie, Abhandlungen, 136, 93-112 |
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King R W, Kerrich R (1989) Chromian dravite associated with ultramafic-rock-hosted Archean lode gold deposits, TimminsPorcupine district, Ontario, The Canadian Mineralogist, 27, 419-426 [view file] |
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Peng M, Mao H, Chen L, Chao E C T (1989) The polarized Raman spectra of tourmaline, Annual Report of the Director Geophysical Laboratory, 1989, 99-105 [view file] |
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Grice J D, Ercit T S (1993) Ordering of Fe and Mg in the tourmaline crystal structure: The correct formula, Neues Jahrbuch für Mineralogie, Abhandlungen, 165, 245-266 [view file] |
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Hawthorne F C, MacDonald D J, Burns P C (1993) Reassignment of cation site occupancies in tourmaline: AI-Mg disorder in the crystal structure of dravite, American Mineralogist, 78, 265-270 [view file] |
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Gashrova B, Mihailova B, Konstantinov L (1997) Raman spectra of various types of tourmaline, European Journal of Mineralogy, 9, 935-940 |
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Dyar M D, Taylor M E, Lutz T M, Francis C A, Guidotti C V, Wise M (1998) Inclusive chemical characterization of tourmaline: Mössbauer study of Fe valence and site occupancy, American Mineralogist, 83, 848-864 [view file] |
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Hawthorne F C, Henry D J (1999) Classification of the minerals of the tourmaline group, European Journal of Mineralogy, 11, 201-215 [view file] |
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Pertlik F, Ertl A, Körner W, Brandstätter F, Schuster R (2003) Na-rich dravite in the marbles from Friesach, Carinthia, Austria: Chemistry and crystal structure, Neues Jahrbuch für Mineralogie, Monatshefte, 2003, 277-288 |
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Bosi F, Lucchesi S, Reznitskii L (2004) Crystal chemistry of the dravite-chromdravite series, European Journal of Mineralogy, 16, 345-352 |
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Bosi F, Lucchesi S (2004) Crystal chemistry of the schorl-dravite series, European Journal of Mineralogy, 16, 335-344 |
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Marschall H R, Ertl A, Hughes J M, McCammon C A (2004) Metamorphic Na- and OH-rich disordered dravite with tetrahedral boron, associated with omphacite, from Syros, Greece: chemistry and structure, European Journal of Mineralogy, 16, 817-823 |
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Novák M, Povondra P, Selway J B (2004) Schorl - oxy-schorl to dravite - oxy-dravite tourmaline from granitic pegmatites; examples from the Moldanubicum, Czech Republic, European Journal of Mineralogy, 16, 323-333 |
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Bosi F (2008) Disordering of Fe2+ over octahedrally coordinated sites of tourmaline, American Mineralogist, 93, 1647-1653 [view file] |
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Ertl A, Marschall H R, Giester G, Henry D J, Schertl H P, Ntaflos T, Luvizotto G L, Nasdala L, Tillmanns E (2010) Metamorphic ultrahigh-pressure tourmaline: structure, chemistry, and correlations to P-T conditions, American Mineralogist, 95, 1-10 [view file] |
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Bačík P, Méres Š, Uher P (2011) Vanadium-bearing tourmaline in metacherts from Chvojnica, Slovak Republic: crystal chemistry and multistage evolution, The Canadian Mineralogist, 49, 195-206 [view file] |
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Henry D J, Novák M, Hawthorne F C, Ertl A, Dutrow B L, Uher P, Pezzotta F (2011) Nomenclature of the tourmaline-supergroup minerals, American Mineralogist, 96, 895-913 [view file] |
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Hughes J M, Rakovan J, Ertl A, Rossman G R, Baksheev I, Bernhardt H J (2011) Dissymmetrization in tourmaline: the atomic arrangement of sectorally zoned triclinic Ni-bearing dravite, The Canadian Mineralogist, 49, 29-40 [view file] |
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Bačík P, Uher P, Ertl A, Jonsson E, Nysten P, Kanický V, Vaculovič T (2012) Zoned REE-enriched dravite from a granitic pegmatite in Forshammar Bergslagen Province, Sweden: An EMPA, XRD and LA-ICP-MS study, The Canadian Mineralogist, 50, 825-841 [view file] |
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Bosi F, Reznitskii L, Skogby H (2012) Oxy-chromium-dravite, NaCr3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup, American Mineralogist, 97, 2024-2030 [view file] |
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Kolitsch U, Andresen P, Husdal T A, Ertl A, Haugen A, Ellingsen H V, Larsen A O (2013) Tourmaline-group minerals from Norway, part II: Occurrences of luinaite-(OH) in Tvedalen, Larvik and Porsgrunn, and fluor-liddicoatite, fluor-elbaite and fluor-schorl at Ågskardet, Nordland, Norsk Bergverksmuseum Skrift, 50, 23-41 |
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Bačík P (2015) Cation ordering at octahedral sites in schorl-dravite series tourmalines, The Canadian Mineralogist, 53, 571-590 |
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Watenphul A, Burgdorf M, Schlüter J, Horn I, Malcherek T, Mihailova B (2016) Exploring the potential of Raman spectroscopy for crystallochemical analyses of complex hydrous silicates: II. Tourmalines, American Mineralogist, 101, 970-985 |
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Bosi F (2018) Tourmaline crystal chemistry, American Mineralogist, 103, 298-306 [view file] |
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O’Bannon III E, Beavers C M, Kunz M, Williams Q (2018) High-pressure study of dravite tourmaline: Insights into the accommodating nature of the tourmaline structure, American Mineralogist, 103, 1622–1633 |
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Hovis G L, Tribaudino M, Altomare C, Bosi F (2023) Thermal expansion of minerals in the tourmaline supergroup, American Mineralogist, 108, 1053-1063 |
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