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Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic
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A classic, rich vein-type Ag-Co-Ni-Bi-U deposit. Jachymov is one of the most extensive and best known examples of a class of ore deposit known generally as the five-element type. The name derives from the dominance of Ag-Co-Ni-As-Bi but is somewhat deceptive because it implies simplicity. Actually many ore deposits in this class are considerably more complex beginning with the presence, in a few, of major amounts of uranium oxide. The Jachymov district, along with the Eldorado mine at Port Radium, Canada, are the two best example of the uranium-rich variant of the five-element ore deposit type.

No five-element ore district has received adequate scientific investigation. Jachymov has received more extensive study than most (Ondrus, et. al, Journal of the Czech Geological Society, 48/3-4, 2003). A broader overview of five-element ore deposits is given by Kissin, Geoscience Canada, V. 19, No.3 (1992)


Jáchymov was founded by count Štěpán Šlik in 1516 in the place of former settlement Konradsgrün. The first known prospecting was done in 1510, the first mentioned mine was started in 1512 (mine of three wise men - Tří králů) - its opening still visible behind the house No. 496. The first find of silver was done after striking the Fundgrubner vein.
Abundant silver deposits lead to fast expansion of mining industry and whole town of Jáchymov ("silver rush") - after four years in 1520 - 4 963 inhabitants, in 1533 - 18 000 inhabitants - the second most populated town in Bohemia after Prague (compared to current 3 333 residents in 2010). In 1524 there were 613 mines and shafts operated. The mined silver was minced to famous coins named after the town (Joachimsthal) as Thaler (Talero, Tolar) later giving name to Dollar. Between 1527 and 1531 worked in Jáchymov Georgius Agricola as a town physician. In the time of greatest prosperity of silver mines (1516-1600) app. 350 tons of Ag were mined.

NOTE: A fine collection of Jachymov minerals was assembled in recent decades by Mr. Josef Vajdak of Massapequa, New York. This private collection was disbursed starting in January, 2009.

Mineral List

Mineral list contains entries from the region specified including sub-localities
Acanthite (TL)
Adamite
Adolfpateraite (TL)
Agardite-(Y)
Agricolaite (TL)
Aikinite
Albite
Albrechtschraufite (TL)
Alloclasite
Allophane
Alunogen
Analcime
Anatase
Andersonite
Anglesite
Anilite
Ankerite
Annabergite
Annite
Antimony
Antlerite
Apjohnite
Aragonite
Argentopentlandite
Argentopyrite (TL)
Arsenic
Arsenolamprite
Arsenolite
Arsenopyrite
Arsenuranospathite
Asbolane
'Ashanite'
Atelestite
Augite
Autunite
Babánekite (TL)
Baryte
Bayldonite
Beaverite-(Cu)
Becquerelite
Běhounekite (TL)
β-Uranophane (TL)
Beudantite
Beyerite
Bieberite
'Biotite'
Bismite
Bismuth
Bismuthinite
Bismutite
Bismutoferrite
Boltwoodite
Bornite (TL)
'Brabantite'
Brassite (TL)
Breithauptite
Brochantite
Calcite
Čejkaite (TL)
Cerussite
Cervantite
Chalcanthite
Chalcocite
Chalconatronite
Chalcophyllite
Chalcopyrite
Chenevixite
Chlorargyrite
'Chlorite Group'
Chrysocolla
Churchite-(Y)
Chvaleticeite
Cinnabar
Claudetite
Clausthalite
Clinosafflorite
Cobaltite
Cobaltkoritnigite
Coffinite
Compreignacite
Copiapite
Copper
Coquimbite
Corkite
Cornwallite
Coronadite
Cryptomelane
Cuprite
Cuprosklodowskite
Curienite
Deliensite
Devilline
Dewindtite
Diadochite
Diaphorite
Dickite
Dolomite
Duftite
Epidote
Epsomite
Erythrite
Eucairite
Eulytine
Ferrohexahydrite
Fluckite
Fluorapatite
var: Carbonate-rich Fluorapatite
Fluorite (TL)
Fourmarierite
'Frieseite'
Galena
'Ganomatite'
Geminite
Gersdorffite
Geschieberite (TL)
Glaucodot
Goethite
Gold
Goslarite
Goyazite
Graphite
Grimselite
Guérinite
Gunningite
Gypsum
var: Selenite
Haidingerite (TL)
Halotrichite
Heisenbergite
Hematite
Hemimorphite
Hexahydrite
Hidalgoite
Hloušekite (TL)
Hörnesite
'Hyalophane'
Hydroniumjarosite
'Hydronium Uranospinite'
Hydroxyapophyllite-(K)
Hydrozincite
Irhtemite
'Isoclasite' (TL)
Jáchymovite (TL)
Jarosite
Johannite (TL)
Jordisite
Kaatialaite
Kahlerite
Kamotoite-(Y)
Kaňkite
Kaolinite
Kasolite
Kermesite
Kettnerite
Koritnigite
Köttigite
Krautite
Krutovite
Langite
Lautite
Lavendulan (TL)
Libethenite
Liebigite
'Limonite'
Lindackerite (TL)
Línekite (TL)
Linnaeite
Löllingite
Ludjibaite
Luzonite
Magnesiozippeite
Malachite
Mallardite
Manganite
Marcasite
Marécottite
Masuyite
Mathesiusite (TL)
Matildite
Maucherite
Mcnearite
Melanterite
Meta-autunite
Metakirchheimerite
Metalodèvite
Metanováčekite
Metarauchite (TL)
Metaschoepite
Metatorbernite
Metatyuyamunite
Metauranopilite (TL)
Metauranospinite
Metavoltine
Metazellerite
Metazeunerite
Miargyrite
Millerite (TL)
Mimetite
Mixite (TL)
Molybdenite
Monohydrocalcite
Moorhouseite
Morenosite
Mottramite
Mrázekite
Muscovite
var: Illite
'Na-metaschoepite'
Namibite
Natrojarosite
Natrolite
Natrozippeite
Nesquehonite
Nickelhexahydrite
Nickeline
Nickelskutterudite
Nickelzippeite (TL)
Ningyoite
Nováčekite-I
Olivenite
'Olivine'
Ondrušite (TL)
Opal
Orpiment
Orthoclase
Palygorskite
Pararammelsbergite
Pararealgar
Parascorodite
Parasymplesite
Parnauite
Parsonsite
'Pateraite'
Pearceite
Petitjeanite
Pharmacolite
Pharmacosiderite
'Phillipsite'
Phosphowalpurgite
Phosphuranylite
Picropharmacolite
'Pitticite'
Plumbojarosite
Polybasite
Posnjakite
Prehnite
Preisingerite
Proustite
Pseudojohannite (TL)
Pseudomalachite
'Psilomelane'
Pucherite
Pushcharovskite
Pyrargyrite
Pyrite
Pyrolusite
Pyromorphite
Pyrostilpnite
Pyrrhotite
Quartz
var: Chalcedony
Rabbittite
Rabejacite
Rammelsbergite
Rauenthalite
Realgar
Retgersite
Rhodochrosite
Rhomboclase
Richetite
Römerite
Roscoelite
Rösslerite
var: Wapplerite
Rouaite
Rozenite
Rutherfordine
Rutile
Safflorite
Sainfeldite
'Scapolite'
Schoepite
Schröckingerite (TL)
Schultenite
Schwertmannite
Scorodite
Sejkoraite-(Y) (TL)
'Serpentine Group'
Siderite
Sideronatrite
Siegenite
Silver
Sklodowskite
Skutterudite
Slavkovite (TL)
'Smectite Group'
Smithsonite
Smrkovecite
Smythite
Soddyite
Sphalerite
Stannite
Stephanite
Štěpite (TL)
Sternbergite (TL)
Stibnite
Strashimirite
Stromeyerite
Sulphur
Švenekite (TL)
Symplesite
Synchysite-(Ce)
Szomolnokite
Talc
Talmessite
Tellurite
Tennantite
Tenorite
Tetradymite
Tetrahedrite
Thénardite
Thorite
Titanite
Topaz
Torbernite
'Tourmaline'
Trögerite
Tyuyamunite
'UM1997-06-AsO:CaCuH'
'UM1997-09-AsO:CaHMgZn'
'UM1997-10-AsO:CaV'
'UM1997-16-AsO:HMg'
'UM1997-18-AsO:HNiU'
'UM1997-20-AsO:HU'
'UM1997-23-CO:CaCuHU'
'UM1997-24-CO:CaCuHU'
'UM1997-25-CO:CaCuHU'
'UM1997-27-CO:CaHKSU'
'UM1997-35-O:HPbU'
'UM1997-48-SO:HPbU'
'UM2006-//-O:HPbU'
Urancalcarite
Uraninite (TL)
'Uranium Mica'
Uranocircite
Uranophane
Uranopilite (TL)
Uranospathite
Uranosphaerite
Uranospinite
Vajdakite (TL)
Vandendriesscheite
Veselovskýite (TL)
Vesuvianite
Villyaellenite
Violarite
Vivianite
Vochtenite
Voglite (TL)
Vysokýite (TL)
Walpurgite
'Waltherite (of Vogl)'
Weeksite
Weilite
Widenmannite
'Wolframite'
Wollastonite
Wölsendorfite
Wulfenite
Wurtzite
Xanthoconite
Xenotime-(Y)
Yingjiangite
Yvonite
Zellerite
Zeunerite
Zippeite (TL)
Znucalite
Zýkaite


435 entries listed. 338 valid minerals. 41 type localities (valid minerals). 1 type locality (other).

Localities in this Region

Czech Republic
Czech Republic

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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.
Current server date and time: August 29, 2014 05:15:49 Page generated: August 22, 2014 19:04:29
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