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Dravite-Schorl Series

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About Dravite-Schorl SeriesHide

Crystal System:
Series Formula:
Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) to Na(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
A series between Dravite and Schorl

The large majority of blackish to dark brownish tourmalines belong to this series.

Crystallography of Dravite-Schorl SeriesHide

Crystal System:

Synonyms of Dravite-Schorl SeriesHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
19 photos of Dravite-Schorl Series associated with QuartzSiO2
10 photos of Dravite-Schorl Series associated with FluorapatiteCa5(PO4)3F
9 photos of Dravite-Schorl Series associated with MuscoviteKAl2(AlSi3O10)(OH)2
6 photos of Dravite-Schorl Series associated with AlbiteNa(AlSi3O8)
5 photos of Dravite-Schorl Series associated with SideriteFeCO3
5 photos of Dravite-Schorl Series associated with ArsenopyriteFeAsS
4 photos of Dravite-Schorl Series associated with SpessartineMn2+3Al2(SiO4)3
2 photos of Dravite-Schorl Series associated with Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
2 photos of Dravite-Schorl Series associated with FerberiteFeWO4
2 photos of Dravite-Schorl Series associated with PyriteFeS2

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Dravite-Schorl SeriesHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Povondra, P. (1981) The crystal chemistry of tourmalines of the schorl-dravite series. Acta Universitatis Carolinae Geologica 3: 223-264.
Povondra, P. and Cech, F. (1985) Lattice parameters of tourmalines of the dravite-schorl series and their relation to chemical composition. Acta Universitatis Carolinae Geologica 1985 (3): 235-245.
Bloodaxe, E.S., J.M. Hughes, M.D. Dyar, E.S. Grew, and C.V. Guidotti (1999), Linking structure and chemistry in the schorl-dravite series: American Mineralogist: 84: 922-928.
Bačík, P. (2015): Cation ordering at octahedral sites in schorl-dravite series tourmalines. Canadian Mineralogist, 53, 571-590.

Internet Links for Dravite-Schorl SeriesHide

Localities for Dravite-Schorl SeriesHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Lower Austria
    • Waidhofen an der Thaya District
      • Raabs an der Thaya
        • Eibenstein an der Thaya
ERTL, Andreas et al. (2004a): Mn-rich tourmaline and fluorapatite in a Variscan pegmatite from Eibenstein an der Thaya, Bohemian massif, Lower Austria.- Eur. J. Mineral., 16/3, 551-560, Stuttgart.
  • Upper Austria
    • Rohrbach District
      • Aigen im Mühlkreis
Reiter, E. (1982): Beiträge zur oberösterreichischen Landesmineralogie, Teil 4: Die Mineralfunde aus dem Steinbruch in Oberhaag bei Aigen-Schlägl. Der Mineraliensammler, F. 3/1982, 15-20, Linz.
  • Sofia City Province
    • Ihtimanska Sredna Gora (Ikhtiman Sredna Gora)
      • Ihtiman
Vasil Arnaudov, Svetoslav Petrusenko, and Chavdar Karov (2003): Sherl, foytit i dravit v pegmatiti ot metamorfnata mantiya na Planskiya pluton, Yugozapadna B'lgariya [Schorl, foitite and dravite from pegmatites in the metamorphic zone of Plana Pluton, SW Bulgaria]. Geokhimiya, Mineralogiya i Petrologiya, 40, 97-107 (in Bulgarian with English abtract). [http://www.geology.bas.bg/mineralogy/gmp_files/gmp40/V.Arnaudov.pdf]
  • Sichuan
    • Garzê Autonomous Prefecture (Ganzi Autonomous Prefecture)
      • Jiulong Co.
Xiangping Zhu, Mingjie Wang, Peng Yao, Jinsha Xu, Jianzhong Li, Minhua Chen, and Gaolin Tang (2008): Acta Petrologica Sinica 24(3), 562-568
  • Xinjiang
    • Bayin'gholin Autonomous Prefecture (Bayingolin Autonomous Prefecture; Bayinguoleng Autonomous Prefecture)
      • Ruoqiang Co. (Qakilik Co.; Chaqiliq Co.)
        • Baigan Lake (Baigan Hu)
          • Baiganhu W-Sn ore field
Daxin Li, Chengyou Feng, Anshun Zhou, Hongmao Li, Xin Li, Jiannan Liu, and Ye Xiao (2013): Mineral Deposits 32(1), 37-54
  • El Oro Province
    • Atahualpa Canton
Alejandro Felix Gutierrez
  • Central Macedonia
    • Thessaloniki
      • Polydentri - Kolchiko area
        • Vertiskos Mt
K. Michailidis et al. , Eur. J. Mineral. , 1996, 8, pp. 393-404.
  • Crete
    • Lasithi
      • Sitía
Eur. J. Mineral. , 1992, 4, pp. 487-507.
  • Karnataka
    • Raichur District
Krienitz, M. et al. (2008): Hydrothermal gold mineralization at the Hira Buddini gold mine, India: constraints on fluid evolution and fluid sources from boron isotopic compositions of tourmaline. Mineralium Deposita, 43, 421-434.
  • Rajasthan
    • Jodhpur Division
      • Sirohi District
Deb, M., Tiwary, A., and Palmer, M.R. (1997): Mineralium Deposita 32, 94-99.
  • Liguria
    • Savona Province
      • Bergeggi
Ciriotti M.E., Biagioni C. (2011): Pot-pourri 2011: identificazioni di minerali di interesse. Micro, 3/2011, 125-133.
  • Piedmont
    • Verbano-Cusio-Ossola Province
      • Formazza
        • Sabbione Glacier
Alberto Vaghi collection
  • Tuscany
    • Lucca Province
      • Stazzema
Eur. J. Mineral. , 1991, 3, pp. 537-548.
  • Ihorombe
    • Ihosy
      • Ihosy Commune
Nicollet, C. (1990) Occurrences of grandidierite, serendibite and tourmaline near Ihosy, southern Madagascar. Mineralogical Magazine, vol. 54, n° 374, 131-133.
  • Vakinankaratra
    • Betafo
      • Ambohimanambola
        • Anjanabonoina pegmatites
De Vito et al (2006): Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist. 44: 87-103.
  • Guerrero
    • Acapulco Municipality
Specimen from Alejandro Felix´´ s collection
  • Aust-Agder
    • Risør
      • Akland
Van King
  • Lesser Poland Voivodeship
    • Western Tatra Mts
Pieczka, A., Kraczka, J. (1994): X-ray and Mossbauer investigations of tourmalines from Tatra Mts. Mineralogia Polonica: 25(2): 63-72
Pieczka, A., Kraczka, J. (1994): X-ray and Mossbauer investigations of tourmalines from Tatra Mts. Mineralogia Polonica: 25(2): 63-72
Pieczka, A., Kraczka, J. (1994): X-ray and Mossbauer investigations of tourmalines from Tatra Mts. Mineralogia Polonica: 25(2): 63-72
  • Castelo Branco
    • Covilhã
Martins da Pedra collection
  • Banská Bystrica Region
    • Žarnovica Co.
Karsten Ivan specimen
South Africa
  • KwaZulu-Natal
    • Ugu District
De Villiers, J.E. (1940) Iron-rich kornerupine from Port Shepstone, Natal. Mineralogical Magazine, vol. 25, n° 169, 550-556.
  • Catalonia
    • Girona (Gerona)
      • Alt Empordà
        • Cadaqués
- Pura Alfonso - J. C. Melgarejo (2000) Boron vs. Phosphorus in granitic pegmatites: the Cap de Creus case Journal of the Czech Geological Society 45/1-2
    • Lleida (Lérida)
      • El Pallars Jussà
        • Tremp
          • Casterner de les Olles
Calvo, M., Calvo, G., Pocovi, A., Lago, M. & Viñals, J. (2011): Epidot und Axinit vom Escales-Stausee, Katalanische Pyrenäen, Nordspanien. Lapis 36 (5), 13-20; 58 (in German). ; Joan Rosell
  • Galicia
    • A Coruña (La Coruña)
      • Santiago de Compostela
        • Aríns
Pascual, E; Estévez, A. (1981) Estudio geológico del yacimiento de Fornás (Santiago). Cuaderno do Laboratorio Xeolóxico de Laxe 2 (vol II):191-211
  • Ticino
    • Blenio Valley
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 415.
    • Leventina
      • Faido
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 415.
    • Lugano lake
      • Carona
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 416.
  • Valais
    • Goms
      • Binn
  • Prachuap Khiri Khan Province
Eur. J. Mineral. , 1993, 5, pp. 721-736.
  • Arizona
    • Maricopa Co.
Sauktown Sales
  • California
    • Riverside Co.
      • Cahuilla Mining District
        • Little Cahuilla Mountain
Osborn, P. (2006) Personal communication between Philip Osborn, Hemet CA. (discoverer/owner) and Scott L. Ritchie, SDMC; 07/25.
  • Colorado
    • Jefferson Co.
Minerals of Colorado (1997) E.B. Eckel
Minerals of Colorado (1997) E.B. Eckel
    • Larimer Co.
      • Crystal Mountain Pegmatite Mining District (Storm Mountain Mining District)
Minerals of Colorado (1997) E.B. Eckel
  • North Carolina
    • Mitchell Co.
      • Spruce Pine Mining District
        • Spruce Pine
Tappen,Christine.,Smith S.Michael and Dockal A. James (2006) Beryl (Aquamarine,Emerald,Green and Yellow) and Tourmaline of the Crabtree Pegmatite,Spruce Pine District Mitchell County ,North Carolina:Proceedings of the 42nd Forumon the Geology of Industrial Minerals at Asheville,North Carolina,Information Circular 34,NCGS
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