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Alexandrite

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Formula:
BeAl
 
2
O
 
4
Name:
Named in 1842 by Nils Adolf Erik Nordenskiöld in honor of Alexander II (1818-81), Czar of Russia, 1855-81.
A variety of Chrysoberyl

Green chromian variety of chrysoberyl (intermediate member of Chrysoberyl-Mariinskite series) that exibits a color change in natural and artificial light from green to amethystine (Alexandrite effect).

Originally reported from Emerald mines (Izumrudnye Kopi; Malyshevskoye deposit), Malyshevo, Ekaterinburg (Yekaterinburg; Sverdlovsk), Sverdlovskaya Oblast', Urals Region, Russia.

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Classification of Alexandrite

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Chemical Properties of Alexandrite

Formula:
BeAl
 
2
O
 
4
Simplified for copy/paste:BeAl2O4
Essential elements:Al, Be, O
All elements listed in formula:Al, Be, O

Other Names for Alexandrite

Synonyms:
Diaphanite
Other Languages:
German:Alexandrit
Spanish:Alexandrita

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.

References for Alexandrite

Reference List:

- +
Nordenskiöd (1842), Russ. Ges. Min. Schr.
Wild and Klemm (1926), Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 31.
Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 718.
Schmetzer K. Bank H. Gübelin E. (1980): The alexandrite effect in minerals: chrysoberyl, garnet, corundum, fluorite. Neues Jahrbuch für Mineralogie Abhandlungen, v. 138, 147-164.
Schmetzer, K. (2010): Russian alexandrites. Schweizerbar Science Publishers, Stuttgart 2010. 141p.
Voll, E.; Pimenta, V. B. (1997) Mapeamento geológico da área garimpeira de alexandrita entre Setubinha e Malacacheta, MG. Trabalho Geológico de Graduação, IGC-UFMG, 52 p.
Basílio, M. S., Pedrosa-Soares, A. C., & Jordt-Evangelista, H. (2013). Depósitos de alexandrita de Malacacheta, Minas Gerais. Revista Geonomos, 8(1) pp47-54
Karl Schmetzer, Jaroslav Hyršl, Heinz-Jürgen Bernhardt and Thomas Hainschwang (2014) Purple to Reddish Purple Chrysoberyl from Brazil, Journal of Gemmology, 34(1), p. 32-40.
http://www.alexandrite.net/

Internet Links for Alexandrite

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

    Localities for Alexandrite

    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.
    (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.
    Australia
     
    • Western Australia
      • Cue Shire
        • Poona
    Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Ore Geology Reviews 34, 87-112.
    Fetherston, J., Stocklmayer, S., Stocklmayer, V(2013): Gemstones of WA, Geological Survey of WA
      • Dowerin Shire
    MinMag 66(6):985-1002
    Downes, P. J., & Bevan, A. W. R. (2002). Chrysoberyl, beryl and zincian spinel mineralization in granulite-facies Archaean rocks at Dowerin, Western Australia. Mineralogical Magazine, 66(6), 985-1002
    Brazil
     
    • Bahia
      • Campo Formoso ultramafic complex
        • Pindobaçu
    • Goiás
      • Minaçu
    Petersen Jr, K. J., Schultz-Güttler, R. A., & da Silveira Bello, R. M. (2008). Alexandrita do pela ema, Minaçu/Go: inclusões fluidas e condições genéticas. Brazilian Journal of Geology, 32(3), 307-316.
    • Minas Gerais
      • Antônio Dias
        • Hematita
    ; Emeralds of the World English extraLapis Vol. 2 2002 pp46-51
      • Ferros
      • Jequitinhonha valley
    Basílio, M. S., Pedrosa-Soares, A. C., & Jordt-Evangelista, H. (2013). Depósitos de alexandrita de Malacacheta, Minas Gerais. Revista Geonomos, 8(1) pp47-54
    Basílio, M. S., Pedrosa-Soares, A. C., & Jordt-Evangelista, H. (2013). Depósitos de alexandrita de Malacacheta, Minas Gerais. Revista Geonomos, 8(1) pp47-54
    Basílio, M. S., Pedrosa-Soares, A. C., & Jordt-Evangelista, H. (2013). Depósitos de alexandrita de Malacacheta, Minas Gerais. Revista Geonomos, 8(1) pp47-54
          • Setubinha
    Basílio, M. S., Pedrosa-Soares, A. C., & Jordt-Evangelista, H. (2013). Depósitos de alexandrita de Malacacheta, Minas Gerais. Revista Geonomos, 8(1) pp47-54
    Basílio, M. S., Pedrosa-Soares, A. C., & Jordt-Evangelista, H. (2013). Depósitos de alexandrita de Malacacheta, Minas Gerais. Revista Geonomos, 8(1) pp47-54
    Basílio, M. S., Pedrosa-Soares, A. C., & Jordt-Evangelista, H. (2013). Depósitos de alexandrita de Malacacheta, Minas Gerais. Revista Geonomos, 8(1) pp47-54
      • Mucuri valley
    Proctor, K. (1984). Gem pegmatites of Minas Gerais, Brazil: exploration, occurrence, and aquamarine deposits. Gems and Gemology, 20(2), 78-100.
    Burma (Myanmar)
     
    • Mandalay Division
      • Pyin-Oo-Lwin District
    http://www.ruby-sapphire.com/r-s-bk-burma2.htm
          • Kyatpyin Central
    Ted Themelis (2008) Gems & mines of Mogok
          • Kyatpyin North
    Ted Themelis (2008) Gems & mines of Mogok
          • Mogok Valley
    Themelis, Ted, 2008, Gems and Mines of Mogok.; Ted Themelis (2008) Gems & mines of Mogok
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Liberec Region
        • Jizerské Mtn (Iser Mtn)
    geological prospecting, 2008 - 2009, Czech geological Organization
    India
     
    • Chattisgarh (Chhattisgarh)
      • Raipur District
    Gem Stone Occurrences in Chhattisgarh. Directorate of Geology and Mining, Chhattisgarh
    Madagascar
     
    • Fianarantsoa Province
      • Horombe Region
        • Ranohira District
          • Ilakaka Commune
    Giuliani, G., Fallick, A., Rakotondrazafy, M., Ohnenstetter, D., Andriamamonjy, A., Ralantoarison, T., Rakotosamizanany, S., Razanatseheno, M., Offant, Y., Garnier, V., Dunaigre, C., Schwarz, D., Mercier, A., Ratrimo, V., and Ralison, B. (2007): Mineralium Deposita 42, 251-270.
      • Vatovavy-Fitovinany Region
        • Mananjary District
          • Mananjary emerald District
            • North Zone
    JULIEN RAOUL
    Russia
     
    • Urals Region
      • Middle Urals
        • Sverdlovskaya Oblast'
    [MinRec 32:41]
            • Malyshevo
              • Izumrudnye Kopi area
    E. Y. Kievlenko (2003) Geology of Gems, 82-83
    Pavel M. Kartashov data
    E. Y. Kievlenko (2003) Geology of Gems, 82-83
    Avdonin V.N., Polenov Yu.A. (2004) Essays on Uralian minerals, - UGGA press, p. 419 (in Rus.).
    E. Y. Kievlenko (2003) Geology of Gems, 82-83
    Spain
     
    • Galicia
      • Pontevedra
        • A Cañiza
    Martin-Izard, A., Paniagua, A., Moreiras, D. (1995) Metasomatism at a granitic pegmatite-dunite contact in Galicia: the Franqueira occurrence of chrysoberyl (alexandrite), emerald, and phenakite. Canadian Mineralogist, 33, 775-792.
    Sri Lanka
     
    • Sabaragamuwa Province
      • Ratnapura District
    http://gemexplorer.org/archives/ratnapura-sri-lanka
    Econ Geol (1981) 76:733-738
    • Western Province
      • Kalutara District
    Tanzania
     
    • Arusha Region
      • Dumbawanga District
    http://www.ganoksin.com/borisat/nenam/tanzania-mines.htm
      • Lake Manyara
    Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    • Ruvuma Region
      • Tunduru District
    Macfarlane, M., Tallontire, A., & Martin, A. (2003). Towards an Ethical Jewellery Business. Natural Resources Institute, University of Greenwich, London.
    USA
     
    • New Mexico
      • Rio Arriba Co.
        • Petaca District
    Northrop, Minerals of New Mexico, 3rd rev. Ed., 1996
    Zimbabwe
     
    • Masvingo
    Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa: 74.
      • Masvingo (Fort Victoria)
    [www.johnbetts-fineminerals.com]
    J. E. Shigley et al. (2010), Gem Localities of the 2000s, Gems and Gemology, Fall 2010, pp. 188–216; Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa: 74.
    • Matabeleland South
    Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa: 74.
    • Midlands
      • Gweru District (Gwelo District)
        • Somabula
    Cairncross, B. (2004) Field Guide To Rocks & Minerals Of Southern Africa: 74.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands 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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