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Alexandrite

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Carnaiba Mine, Pindobaçu, Campo Formoso ultramafic complex, Bahia, Brazil
© fabreminerals.com

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Name:
In honor of Alexander II (1818-81), Czar of Russia, 1855-81.
A variety of Chrysoberyl

Green gem variety of chrysoberyl 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.

Classification of Alexandrite

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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, 138, 147-164.

- Schmetzer, K. (2010): Russian alexandrites. Schweizerbar Science Publishers, Stuttgart 2010. 141p.


http://www.alexandrite.net/

Internet Links for Alexandrite

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    • 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.
    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.
    Australia
     
    • Western Australia
      • Cue Shire
        • Cue
          • Poona
    		Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Ore Geology Reviews 34, 87-112.
    MinMag 66(6):985-1002
    Brazil
     
    • Bahia
      • Campo Formoso ultramafic complex
        • Pindobaçu
      • Curaçá
        • Curaçá River Valley
    • Goiás
      • Minaçu
    • Minas Gerais
      • Antônio Dias
        • Hematita
    		; Emeralds of the World English extraLapis Vol. 2 2002 pp46-51
      • Ferros
      • Jequitinhonha valley
      • Mucuri valley
        • Malacacheta
    		No reference listed
    Burma (Myanmar)
     
    • Mandalay Division
      • Sagaing District
    		http://www.ruby-sapphire.com/r-s-bk-burma2.htm
    Themelis, Ted, 2008, Gems and Mines of Mogok.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Liberec Region
        • Jizerské Mts (Iser Mts)
    		geological prospecting, 2008 - 2009, Czech geological Organization
    India
     
    • Chattisgarh (Chhattisgarh)
      • Raipur District
    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.
    Russia
     
    • Urals Region
      • Middle Urals
    [MinRec 32:41]
            • Malyshevo
              • Tokovaya river (Tokovaia river)
    		No reference listed
    Sri Lanka
     
    • Sabaragamuwa Province
      • Ratnapura District
        • Ratnapura
    		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
    USA
     
    • New Mexico
      • Rio Arriba Co.
        • Petaca District
    		Northrop, Minerals of New Mexico, 3rd rev. Ed., 1996
    Zimbabwe
     
    • Masvingo District
      • 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
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. 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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    Updated Mineral Entry: MurchisiteFrom Bela Feher, 12th Feb 2012 12:40:44