Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Emerald

Big Photo

Boyacá Department, Colombia
© FotoWeb

Show Emerald Photos (366)
System:Hexagonal
A variety of Beryl

A green gem variety of Beryl, highly sought after as a precious gem stone. The majority of the worlds gem quality Emeralds come from the Muzo area of Colombia.

The colour in Emerald is caused by trace amounts of a chromophore such as Chromium or Vanadium.

Classification of Emerald

mindat.org URL:http://www.mindat.org/min-1375.html
Please feel free to link to this page.

Crystallography of Emerald

Crystal System:Hexagonal

Other Names for Emerald

Synonyms:
Agee
Other Languages:
Arabic:زمرد
Bulgarian:Изумруд
Catalan:Maragda
Czech:Smaragd
Danish:Smaragd
Dutch:Smaragd
Esperanto:Smeraldo
Finnish:Smaragdi
French:Émeraude
German:Smaragd
Indonesian:Zamrud
Italian:Smeraldo
Japanese:エメラルド
Lithuanian:Smaragdas
Norwegian (Bokmål):Smaragd
Polish:Szmaragd
Portuguese:Esmeralda
Romanian:Smarald
Russian:Изумруд
Serbian (Cyrillic Script):Смарагд
Slovak:Smaragd
Slovenian:Smaragd
Spanish:Esmeralda
Swedish:Smaragd
Thai:มรกต
Vietnamese:Ngọc lục bảo

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 Emerald

Reference List:Sinkankas (1981) "Emeralds and other Beryls".
Extra Lapis English No. 2 "Emeralds of the world"
Extra Lapis No. 22 (in German)

Articles/Blogs about Emerald

Article entries:
Emeralds of the Old Plantation Mine, Shelby, North CarolinaDaniel Russell

Best Localities for Emerald

Best of Species:Emerald

Internet Links for Emerald

Search Engines:
  • Look for Emerald on Google
  • Look for Emerald images on Google
    • Mineral Dealers:
  • Fine Minerals from Dan Weinrich Minerals
  • Wendel Minerals - Auktion & Shop
  • SpiriferMinerals.com - high quality specimens
  • Lapis Mineral Magazin
  • Buy Fine Minerals from mineralsweb.com
  • Buy fine minerals and gemstones from Pala International
  • rare and unusual minerals mainly crystallized
  • Buy from David K Joyce minerals
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Search for - Emerald - on e-Rocks Mineral Sales & Auctions
  • Rare and Unusual minerals at Mineralogical Research Company
  • Fabre Minerals - search for Emerald specimens
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Emerald

    Hide Locality List
    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.
    These maps work faster with Firefox!
    (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
     
    • Badakhshan (Badakshan; Badahsan) Province
    		Rob Lavinsky
    • Laghman (Lagman; Nuristan) Province
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    • Nangarhar (Ningarhar) Province
    • Panjshir (Panjsheer) Province
      • Hessa-e-Say District
        • Panjsher (Panjshir) Valley
    		Sabot B, Cheilletz A, de Donato P, Banks D, Levresse G, Barrès O, 2000. Afghan emeralds face Colombian cousins. Chronique de la Recherche Minière, 541, 111-114.
          • Panjsher (Panjshir) Pegmatite Field
    Emeralds of the World English extraLapis Vol. 2 2002 pp61-62
    Australia
     
    • New South Wales
      • Arrawatta Co.
    		R.E Brown and W.J Stroud, Metallogenic Study and Mineral Deposit Data Sheets, 1997.
      • Clive Co.
        • Torrington
    		Personal collection
          • Fielder's Hill
      • Gough Co.
        • Emmaville
    		Buchester K.J. (1972) A Treasury of Australian Gemstones
        • Strathbogie
    		R.E Brown and W.J Stroud, Metallogenic Study and Mineral Deposit Data Sheets, 1997.
        • Torrington district
    		H.F. Henley et al. Grafton-MacLean 1:250 000 Metallogenic Map and Mineral Deposit Data sheets, 2001
      • Selwyn Co.
        • Tumbarumba
    		Wagga Wagga Mine Data Sheets, 1982
    • South Australia
      • Andamooka Ranges - Lake Torrens area
        • Stuart Shelf area
          • Mt Gunson
    • Tasmania
      • St Helens district
    		Bottrill, R.S. & Baker, W.E. (2008) A Catalogue of the Minerals of Tasmania. Bull. 73. Minerals Resources Tasmania
    • Western Australia
      • Coolgardie Shire
        • Coolgardie
          • Bullabulling
    		Min News 21:7 p 8
      • Cue Shire
        • Cue
          • Poona
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
      • Menzies Shire
        • Menzies
    Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
      • Pilbara Region
        • Wodgina
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Austria
     
    • Salzburg
      • Hohe Tauern Mts
        • Felben valley
          • Scheelite deposit
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
        • Habach valley
          • Breitfuß Mt. - Großer Finagl Mt. area
    		A. Strasser: Die Minerale Salzburgs (1989)
    A. Strasser: Die Minerale Salzburgs (1989)
          • Nasenkopf Mt.
            • Leckbachgraben (Leckbachrinne)
    		A. Strasser: Die Minerale Salzburgs (1989)
        • Hollersbach valley
          • Scharnbachgraben
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
        • Untersulzbach valley
          • Ascham Alp - Breitfuß Mt. - Sonntagskopf Mt. area
    		A. Strasser: Die Minerale Salzburgs (1989)
    G. Grundmann et al.: Lapis 16(2):37-45 (1991)
    Brazil
     
    • Central-West Region
      • Goiás
        • Pirenópolis
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
        • Santa Terezinha de Goiás District
          • Campos Verdes
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    • North Region
      • Tocantins
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    • Northeast Region
      • Bahia
        • Brumado (Bom Jesus dos Meiras)
    		[www.johnbetts-fineminerals.com]
    Rob Lavinsky.
    Cassedanne, J.P. & Cassedanne, J.O. (1978): Famous mineral localities: The Brumado district, Bahia , Brazil. Mineralogical Record 9 : 196-205
        • Campo Formoso District
          • Campo Formoso
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
          • Pindobaçu
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
        • Eastern Brazilian Pegmatite Province
          • Itambé Pegmatite District
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
        • Pilão Arcado
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
      • Ceará
        • Tauá
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
      • Rio Grande do Norte
    • Southeast Region
      • Minas Gerais
        • Conceição do Mato Dentro
          • São José de Brejaúba (São José de Bryamba)
    		Guimar˜aes, C.P. (1941) Djalmaite, a new radioactive mineral. Amer. Mineral., 26, 343–346.
        • Doce valley
          • Conselheiro Pena
    		http://www.findarticles.com/cf_dls/m0GDX/1_75/61933122/p10/article.jhtml?term=
        • Eastern Brazilian Pegmatite Province
          • Nova Era Pegmatite District
            • Itabira
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Kanis, J. (2002): Piteiras, Brasilien: Erfolgreiche Smaragdsuche mit modernsten Methoden. Lapis 27 (3), 13-18
    Da Silva Lopes, P.H., Cesar-Mendes, J., Roeser, H. (2008): Ein neues Smaragdvorkommen in Brasilien – Die Rocha Mineracao Mine in Minas Gerais, Der Aufschluss, Vol. 59, 301-315
            • Nova Era
    		Morteani, G., Preinfalk, C., and Horn, A.H. (2000): Mineralium Deposita 35, 638-655.
    Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Ore Geology Reviews 34, 87-112.
    Bulgaria
     
    • Rila Mts
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Canada
     
    • British Columbia
      • Skeena Mining Division
        • Stewart
    		Can.Rockhound v.3, no.1
    • Northwest Territories
      • Mackenzie District
        • Mackenzie Mts
    		Mercier, M. et al (2008) 35th Rochester Mineralogical Symposium, Abstracts of contributed papers, 15.
      • Tungsten
    		Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Ore Geology Reviews 34, 87-112.
    • Ontario
      • Kenora District
        • Brownridge Township
    		CanRockhound Vol.7, No. 2 (2003)
        • Dryden
    		Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Ore Geology Reviews 34, 87-112.
    • Yukon Territory
      • Watson Lake Mining District
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    China
     
    • Hunan Province
      • Yueyang Prefecture
        • Pingjiang Co.
    		No reference listed
    • Xinjiang (Xinjiang-Uygur) Autonomous Region
      • Kashi (Kashgar; Qeshqer) Prefecture
        • Tashiku'ergan (Taxkorgan; Tashqurqan) Co.
    		Blauwet, D., Quinn, E.P., and Muhlmeister, S. (2005): Gems and Gemology 41, 56–57.
    • Yunnan Province
      • Wenshan Autonomous Prefecture
        • Malipo Co.
          • Nanwenhe complex
    		Ottens, B. (2006): Lapis 31(4), 13-20.
    Colombia
    Emeralds of the World English extraLapis Vol. 2 2002 pp36-45
    Emeralds of the World English extraLapis Vol. 2 2002 pp36-45
    • Boyacá Department
      • Guavió-Guatéque Mining District
        • Chivor
    		Emeralds of the World English extraLapis Vol. 2 2002 pp36-45
    Banks, D.A., Giuliani, G., Yardley, B.W.D., and Cheilletz, A. (2000): Mineralium Deposita 35, 699-713.
    Banks, D.A., Giuliani, G., Yardley, B.W.D., and Cheilletz, A. (2000): Mineralium Deposita 35, 699-713.
    Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Ore Geology Reviews 34, 87-112.
    Emeralds of the World English extraLapis Vol. 2 2002 pp36-45
    Emeralds of the World English extraLapis Vol. 2 2002 pp36-45
    Banks, D.A., Giuliani, G., Yardley, B.W.D., and Cheilletz, A. (2000): Mineralium Deposita 35, 699-713.
      • Vasquez-Yacopí Mining District
        • La Glorieta
    		Banks, D.A., Giuliani, G., Yardley, B.W.D., and Cheilletz, A. (2000): Mineralium Deposita 35, 699-713.
        • Maripi
          • La Pita
    		Jordi Fabre
    Emeralds of the World English extraLapis Vol. 2 2002 pp36-45
        • Muzo
    		Banks, D.A., Giuliani, G., Yardley, B.W.D., and Cheilletz, A. (2000): Mineralium Deposita 35, 699-713.
    Emeralds of the World English extraLapis Vol. 2 2002 pp36-45
    Min.Rec.:20(5):394.
    Banks, D.A., Giuliani, G., Yardley, B.W.D., and Cheilletz, A. (2000): Mineralium Deposita 35, 699-713.
    Banks, D.A., Giuliani, G., Yardley, B.W.D., and Cheilletz, A. (2000): Mineralium Deposita 35, 699-713.
        • San Pablo de Borbur
    		Natural History Museum Vienna collection; Emeralds of the World English extraLapis Vol. 2 2002, 36-45
    Egypt
     
    • Red Sea Governorate
      • Eastern Desert
        • Sikait-Zabara region
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Ethiopia
     
    • Sidamo-Borana Province
      • Negele area
    		Pavel M. Kartashov data
    France
     
    • Limousin
      • Haute-Vienne
        • Limoges
    		http://pujol.chez.tiscali.fr/ident/beryl.html
    • Lower Normandy
      • Orne
        • Alençon
    		http://www.arehn.asso.fr/centredoc/livres/deboodt/complement.php
    Germany
     
    • Schleswig-Holstein
      • Kiel
        • Schönberg in Holstein
    		A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
    India
     
    • Rajasthan (Rajputana)
      • Ajmer Division
        • Ajmer District
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    • Tamil Nadu
      • Salem District
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Italy
     
    • Piedmont
      • Verbano-Cusio-Ossola Province
        • Ossola Valley
          • Vigezzo Valley
            • Trontano
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    • Tuscany
      • Livorno Province
        • Elba Island
          • Campo nell'Elba
            • San Piero in Campo
    		P. Orlandi, F. Pezzotta (1996) - Minerali dell’Isola d’Elba - Ed. Novecento Grafico, Bergamo, 245 pp.
      • Lucca Province
        • Apuan Alps
          • Stazzema
            • Ponte Stazzemese
    		Duchi G., Franzini M., Giamello M., Orlandi P., Riccobono F., 1993. The iron-rich beryls of Alpi Apuane. Mineralogy, chemistry and fluid inclusion. N. Jb. Mineral. Mh.: 193-207
            • Sant'Anna di Stazzema
    		Duchi G., Franzini M., Giamello M., Orlandi P., Riccobono F., 1993. The iron-rich beryls of Alpi Apuane. Mineralogy, chemistry and fluid inclusion. N. Jb. Mineral. Mh.: 193-207
    Kazakhstan
     
    • Qaraghandy Oblysy (Karaganda Oblast')
    		Gavrilenko et al. (2006): Emeralds from the Delbegetey deposit (Kazakhstan): mineralogical characteristics and fluid-inclusion study. Mineral. Mag., 70, 159-173. ; Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Ore Geology Reviews 34, 87-112.
    • Shyghys Qazaqstan Oblysy (Vostochno-Kazakhstanskaya [Eastern-Kazakhstan] Oblast')
    		Gavrilenko et al. (2006): Emeralds from the Delbegetey deposit (Kazakhstan): mineralogical characteristics and fluid-inclusion study. Mineral. Mag., 70, 159-173.
    Madagascar
     
    • Antananarivo Province
      • Ankadilalana
      • Vakinankaratra Region (Betafo - Antsirabé region)
        • Betafo Department
          • Mahaiza Commune
    		http://www.minsocam.org/MSA/Special/Pig/PIG_articles/Madagascar_txt.pdf
    • Fianarantsoa Province
      • Vatovavy-Fitovinany Region
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
          • North Zone
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
          • South Zone
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Vapnik, Ye., Moroz, I. Roth, M. and Eliezri, I. (2006). Mineral. Mag., 70, 141-158.
    Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    • Mahajanga (Majunga) Province
      • Betsiboka Region
        • Tsaratanàna Department
          • Andriamena Commune
    		Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
    • Tuléar (Toliara) Province
      • Southwestern Region
        • Benenitra Department
          • Ianapera (Janapera) area
    		Emeralds of the World English extraLapis Vol. 2 2002 pp 52-59
    Mozambique
     
    • Zambezia Province
      • Alto Ligonha District
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
      • Gité
    		Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Ore Geology Reviews 34, 87-112.
    Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Ore Geology Reviews 34, 87-112.
      • Uape
    Namibia
     
    • Hardap Region
      • Malta Heights (Maltahöhe)
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Nigeria
     
    • Kaduna State
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
      • Nandu Village
    		Labeled Emerald specimen from the Nandu mine is in the Mario Pauwels collection
    • Nassarawa (Nasarawa) State
    		Emeralds of the World English extraLapis Vol. 2 2002 pp52-59
    • Plateau State
    		Groat, L.A., Giuliani, G., Marshall, D.D., and Turner, D. (2008): Ore Geology Reviews 34, 87-112.
    Norway
     
    • Akershus
      • Eidsvoll (Eidsvold)
        • Minnesund
    		Emeralds of the World English extraLapis Vol. 2 2002 pp 24-35
    • Nordland
      • Bodø
    		Kristiansen, R. (1999): Berylliummineraler i Norge. STEIN 26 (2),8-23
    Pakistan
     
    • Federally Administered Tribal Areas (FATA)
      • Bajaur Agency
    		[Emeralds of the World - extraLapis nr2 - p24]
      • Mohmand Agency
        • Ganadao
    		[Emeralds of the World - p24 English extraLapis Vol2 2002]
    • North-West Frontier Province
      • Malakand Region
        • Swat District (Swat Valley)
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    [Emeralds of the World - p24 English extraLapis Vol2 2002]; Econ Geol (1986) 81:2022-2028
    Econ Geol (1986) 81:2022-2028
    Econ Geol (1986) 81:2022-2028
    Econ Geol (1986) 81:2022-2028
    Econ Geol (1986) 81:2022-2028
    • Northern Areas
      • Gilgit District
        • Haramosh Mts.
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Russia
     
    • Urals Region
      • Middle Urals
        • Ekaterinburgskaya (Sverdlovskaya) Oblast'
          • Ekaterinburg (Sverdlovsk)
            • Malyshevo
    		Dan Weinrich
              • Tokovaya river (Tokovaia river)
    		http://minerals.usgs.gov/minerals/pubs/country/1994/9434094.pdf; Dan Weinrich
    Somaliland
     
    • Hargeisa (Hargeysa)
      • Borama District
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    South Africa
     
    • Limpopo Province
      • Murchison Range
        • Gravelotte
          • Gravelotte Emerald Mine
    		Minerals of South Africa
          • Willie farm
    		Minerals of South Africa
    Werner, A.B.T., Sinclair, W.D., and Amey, E.B. (1998): US Geological Survey Circular 930-O.
    • Northwest Province
      • Schweizer-Reneke
    		Minerals of South Africa
    Spain
     
    • Galicia
      • Pontevedra
        • A Cañiza
    		[MinRecord 28:497]
    Switzerland
     
    • Wallis (Valais)
      • Binn Valley
    		Schweizer Strahler 2003 Nr. 4
    Tanzania
     
    • Arusha Region
      • Dumbawanga District
    		Emeralds of the World English extraLapis Vol. 2 2002 pp52-59
      • Lake Manyara
    		Journal of Gemology, Volume 26, No. 2 - Mineral Inclusions in Emeralds from Different Sources
    • Rukwa Region
      • Sumbawanga District
    USA
     
    • Connecticut
      • Fairfield Co.
    		www.johnbetts-fineminerals.com
    • Montana
      • Mineral Co.
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    • Nevada
      • Pershing Co.
        • Rye Patch District
    		MacFall, 1951. Gem Hunter's Guide, 1st ed.
    • North Carolina
      • Alexander Co.
    		USGS , Mineral Resources On-Line Spatial Data, 2005
    U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System (Mars/Mils)CD-Rom,Sep,1995
        • Hiddenite
    		Rocks & Min.:60:84.
    Rocks & Min.: 60: 65.
    Kunz, G. F. 1907. History of the Gems found in North Carolina: Beryl Gems and Spodumene (Hiddenite). North Carolina Geological and Economic Survey, Bulletin No. 12. Chapter 6, pages 37-48.
    Mineral Commodity Files ,Asheville Regional Office , North Carolina Geological Survey
    Mineral Commodity Files, Asheville Regional Office, North Carolina Geological Survey
      • Burke Co.
        • South Mountain District
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Clay Co.
        • Buck Creek
    		Mineral Commodity Files, Asheville Regional Office, North Carolina Geological Survey
      • Cleveland Co.
        • Lawndale
    		MacFall, 1951. Gem Hunter's Guide, 1st ed.
        • Shelby
    		Rocks & Min.: 60:88.
      • Gaston Co.
    		Mineral Commodity Files,Asheville Regional Office,North Carolina Geological Survey
    Mineral Commodity Files,Asheville Regional Office,North Carolina Geological Survey
    Mineral Commodity Files,Asheville Regional Office,North Carolina Geological Survey
      • Mitchell Co.
        • Spruce Pine District
          • Spruce Pine
    		Rocks & Min.:60:92.
      • Swain Co.
    		Mineral Commodity Files,Asheville Regional Office,North Carolina Geological Survey
        • Bryson City Feldspar District
    		Mineral Commodity Files,Asheville Regional Office,North Carolina Geological Survey
    Mineral Commodity Files,Asheville Regional Office,North Carolina Geological Survey
    Mineral Commodity Files,Asheville Regional Office,North Carolina Geological Survey
    • South Carolina
    		Gems and Minerals of America-Jay Ellis Ransom-1974
    Zambia
     
    • Copperbelt Province
      • Ndola
    		Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Emeralds of the World English extraLapis Vol. 2 2002 pp52-59
    Collection of Martin Slama
    Collection of Martin Slama
    Emeralds of the World English extraLapis Vol. 2 2002 pp24-35
    Zimbabwe
     
    • Mashonaland West
    • Masvingo District
      • Bikita
      • Masvingo (Fort Victoria)
    • Matabeleland South
      • Mweza Range (Wedja)
        • Sandawana-Belingwe District
    		Mining Annual Review (1985): 427.
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. If you would like to add information to improve the quality of our database, then click here to register.