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Demantoid

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Big Photo

Sferlun asbestos mine, Malenco Valley, Sondrio Province, Lombardy, Italy
© Chinellato Matteo

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Name:Named by Nils Gustaf Nordenskiøld from the archaic German word "Demant" which means "diamond" in allusion to its very high brilliance resembling that of diamond.
A variety of Andradite

Garnet group.

A green variety of Andradite.
Originally described from Telyanskai River, Kemennya Teliyana, Nizhne-Tagil'skoye (Mednorudyanskoye) Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Urals Region, Russia.

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Classification of Demantoid

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Other Names for Demantoid

Other Languages:
Simplified Chinese:翠榴石

Other Information

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

Internet Links for Demantoid

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    • Specimens:The following Demantoid specimens are currently listed for sale on minfind.com.
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    • Localities for Demantoid

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Afghanistan
     
    Rob Lavinsky specimen
    Argentina
     
    • Mendoza
      • Malargüe Department
        • Morro de Yeso
    		Dr. Jorge Dascal and Gunnar Farber specimens
    Canada
     
    • Québec
      • Chaudière-Appalaches
        • Les Appalaches RCM
          • Saint-Joseph-de-Coleraine
    		Mineralogical Record 40:297-304
    www.alpinegems.net
    China
     
    • Xinjiang Autonomous Region
      • Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture)
        • Tacheng Prefecture (Tarbaghatay Prefecture)
          • Tuoli Co. (Toli Co.)
            • Sartohay (Sartokay; Sartuohai; Saertuohai)
    		Yanling Tang (2005): Non-metallic deposits of Xinjiang, China [Zhongguo Xinjiang Fei Jinshu Kuangchuang]. Geological Publishing House (Beijing), 289 pp.
    Germany
     
    • Bavaria
      • Franconia
        • Münchberg Metamorphic complex
          • Oberkotzau
            • Wurlitz
    		F. Müller: "Bayerns steinreiche Ecke", 2nd ed., Oberfränkische Verlagsanstalt (Hof), 1984
          • Zell
    		F. Müller: "Bayerns steinreiche Ecke", 2nd ed., Oberfränkische Verlagsanstalt (Hof), 1984
    • Hesse
      • Dillenburg District
        • Hirzenhain
    		S. Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Iran
     
    • Kerman Province
      • Baft District
    		Gems and Gemology, Volume 38, Issue 1
    Italy
     
    • Aosta Valley
      • Emarese
    		Del Caldo A.,Moro C.,Gramaccioli C.M.,Boscardin M.-Guida ai Minerali-Fratelli Fabbri Editori (1973)
    C.M. Gramaccioli (1975)-Minerali alpini e Prealpini-Edizioni Atlas Bergamo
    • Lombardy
      • Sondrio Province
    		No reference listed
          • Lanterna valley
    		Domenico Preite Collection & Photo
            • Campo Franscia
    		De Michele, V. (1974). Guida mineralogica d'Italia. Istituto Geografico De Agostini, Novara, 2 vol.
    Giovanni Scapin specimen
    P Haas collection
    De Michele, V. (1974). Guida mineralogica d'Italia. Istituto Geografico De Agostini, Novara, 2 vol.
    • Piedmont
      • Torino Province
        • Sesia-Lanzo zone
          • Lanzo Valley
            • Ala Valley
              • Balme
    		Gramaccioli, C.M. (1975). Minerali alpini e prealpini. Istituto Italiano Edizioni Atlas, Bergamo, 2 vol.
    Japan
     
    • Honshu Island
      • Kanto Region
        • Saitama Prefecture
          • Chichibu City
            • Ohtaki-mura
              • Nakatsugawa
    		Specimens on sale at TIMA show, Tokyo, 2012.
    Madagascar
     
    • Antsiranana Province
      • Diana Region (Northern Region)
        • Ambanja District
          • Ambanja
    		Pezzotta, F. (2009). Demantoide e Topazolite: nuovo ritrovamento in Madgascar. Rivista Mineralogica Italiana, n.3-2009, 198-200; Pezzotta, F. (2010): Demantoid und Topazolith aus Antetezambato, Nordmadagaskar. Lapis, 35 (10), 31-39; 90; Hintze, J. (2010): Eine Reise zu den Demantoiden von Antetezambato. Lapis, 35 (10), 40-43 (in German).
    Mexico
     
    • Veracruz
      • Mun. de Tatatila
        • Piedra Parada (Piedras Parado)
    		Jordi Fabre photo
    Namibia
     
    • Erongo Region
      • Karibib District
    		Bezing, L. von, Bode, R. & Jahn, S. (2007): Namibia. Mineralien und Fundstellen. Edition Schloss Freudenstein, Bode Verlag, Haltern, 856 pp. (in German)
    Rob Lavinsky
    Locker, H. (2011): Mineraliensammeln im Urlaub: Grün ist die Hoffung: Auf der Suche nach Demantoiden in Namibia. Lapis 36 (12): 26-29
    Manfred Lehrl (pers. comm. to U. Kolitsch, 2011)
    Bezing, L. von, Bode, R. & Jahn, S. (2007): Namibia. Mineralien und Fundstellen. Edition Schloss Freudenstein, Bode Verlag, Haltern, 856 pp. (in German)
        • Usakos
    		Min Rec 29:140
    Russia
     
    • Far-Eastern Region
      • Chukotskii Autonomous Okrug
        • Koryakskoe plateau
    		http://geo.web.ru/druza/l-Tamvatnei.htm; http://www.pegmatite.ru/
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Kovdor Massif
    		[World of Stones 95:5-6, p64]
    • Urals Region
      • Middle Urals
        • Sverdlovskaya Oblast'
          • Ekaterinburg (Sverdlovsk)
    		Sehrig, M. (2008): Lapis 33 (11), 32-35.
          • Nizhnii Tagil
            • Kamennaya Telyana
    		No reference listed
      • Southern Urals
        • Chelyabinsk Oblast'
          • Korkodin
    		[MinRec 32:42]
    Slovakia
     
    • Košice Region
      • Rožňava Co.
    		Duda, Rejl, Slivka: "Mineralien", 1991
    Spain
     
    • Extremadura
      • Badajoz
        • Burguillos del Cerro
    • Galicia
      • A Coruña (La Coruña)
        • Cariño (Ortigueira)
          • Cabo Ortegal complex
    		Madon, M., Gil, J.I., Via, J. and Girardeau, J. (1991). Characterization and thermodynamic properties of andradite, Ca3Fe2Si3O12. American Mineralogist, 76:1249-1260.
    Sri Lanka
     
    • Sabaragamuwa Province
      • Ratnapura District
        • Ratnapura
    		Ceylon Aluvial Mine, (Book, Co. 2002)
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Puschlav (Poschiavo Valley)
        • Selva
    		Romani E. (2000): Andar per cristalli - Tesori nascosti. Centro studi del Museo mineralogico naturalistico di Bormio, 151 p.
    • Wallis (Valais)
      • Binn Valley
        • Geisspfad area
    		found by FdW
      • Zermatt - Saas Fee area
        • Matt Valley
          • Zermatt
            • Findel glacier (Findeln glacier; Findelen glacier) area
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 38-39
        • Saas Valley
          • Saas Fee
            • Fee Glacier
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 38
    Ref.: Stalder, H. A., de Quervain, F., Niggli, E., Graeser, St., Die Mineralfunde der Schweiz, (1973), p. 321
    Tajikistan
     
    • Viloyati Mukhtori Gorno-Badakhshan (Viloyati Badakhshoni Kuni)
    		[MinRec 32:42]
    • Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad)
      • Kuraminskii Range
    USA
     
    • California
      • San Benito Co.
        • Diablo Range
          • New Idria District
    		www.mineralsocal.org
            • New Idria
    		[www.johnbetts-fineminerals.com]
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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