Mindat Logo
Home Page Log In Messageboard The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Vajdakite

This page is currently not sponsored. Click here to sponsor this page.
Big Photo

Svornost Mine (Einigkeit Mine), Jáchymov (St Joachimsthal), Jáchymov (St Joachimsthal) District, Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic
© 2008, JGW

Show Vajdakite Photos (9)



Formula:
[(Mo
6+
 
O
 
2
)
 
2
(H
 
2
O)
 
2
As
3+
2
O
 
5
] · 3H
 
2
O
System:MonoclinicColour:Green to grey-green.
Lustre:Vitreous
Name:After Josef Vajdak, American mineral collector and dealer of rare minerals.


An arsenite.

Classification of Vajdakite

IMA status:Approved
Nickel-Strunz 10th (pending) edition ID:4.JC.20

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
C : Arsenites, antimonites, bismuthites; without additional anions, with H2O
mindat.org URL:http://www.mindat.org/min-7053.html
Please feel free to link to this page.

Type Occurrence of Vajdakite

Type Locality:Svornost Mine (Einigkeit Mine), Jáchymov (St Joachimsthal), Jáchymov (St Joachimsthal) District, Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Physical Properties of Vajdakite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Green to grey-green.
Streak:White

Crystallography of Vajdakite

Crystal System:Monoclinic

Optical Data of Vajdakite

Type:Biaxial (+)
RI values: nα = 1.757 nβ = 1.778 nγ = 2.040
Maximum Birefringence:δ = 0.283

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r > v

Chemical Properties of Vajdakite

Formula:
[(Mo
6+
 
O
 
2
)
 
2
(H
 
2
O)
 
2
As
3+
2
O
 
5
] · 3H
 
2
O
Essential elements:As, H, Mo, O
All elements listed in formula:As, H, Mo, O

Relationship of Vajdakite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.JC.05Cafarsite
Ca
 
8
(Ti,Fe,Fe,Mn)
 
6-7
(AsO
 
3
)
 
12
 · 4H
 
2
O
4.JC.10Lazarenkoite
(Ca,Fe
2+
 
)Fe
3+
 
As
3+
3
O
 
7
 · 3H
 
2
O
4.JC.15Rouseite
Pb
 
2
Mn
2+
 
[AsO
 
3
]
 
2
 · 2H
 
2
O

Other Names for Vajdakite

Synonyms:
IMA1998-031
Other Languages:
German:Vajdakit
Russian:Вайдакит
Spanish:Vajdakita

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 Vajdakite

Reference List:

- +
American Mineralogist (2002): 7: 983-990.

Best Localities for Vajdakite

Best of Species:Vajdakite

Internet Links for Vajdakite

Search Engines:
  • Look for Vajdakite on Google
  • Look for Vajdakite images on Google
    • External Links:
  • Look for Vajdakite on Webmineral
  • Look for Vajdakite on Athena Mineralogy
  • Look for Vajdakite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
    • Mineral Dealers:
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Fine and rare minerals from mintreasure.com
  • Buy minerals from YourMineralCollection
  • Buy from David K Joyce minerals
  • rare and unusual minerals mainly crystallized
  • Buy RARE Minerals from Rocks of Africa
  • Fabre Minerals - search for Vajdakite specimens
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Wilensky Fine Minerals
  • The Arkenstone - Fine Minerals
  • Vajdakite specimens for sale - minfind.com
  • webminerals
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Vajdakite

    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.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Jáchymov (St Joachimsthal) District
            • Jáchymov (St Joachimsthal)
    		Amer.Min.(2002) 87, 983-990; Lapis 2002(7/8), 62
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2012. 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.
    Current server date and time: 3rd Dec 2012 14:39:07
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds