Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (10 online) Mindat Auctions

Kahlerite

Formula:
Fe(UO
 
2
)
 
2
(AsO
 
4
)
 
2
·12H
 
2
O
System:TetragonalHardness:2 - 2½
Name:For Austrian geologist, Franz Kahler.


Autunite Group

Classification of Kahlerite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/E.01-50
Nickel-Strunz 10th (pending) edition ID:8.EB.05

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
Dana 8th edition ID:40.2a.15.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
Hey's CIM Ref.:20.7.19

20 : Arsenates (also arsenates with phosphate, but without other anions)
7 : Arsenates of U
mindat.org URL:http://www.mindat.org/min-2131.html
Please feel free to link to this page.

Type Occurrence of Kahlerite

Type Locality:Knichte section, Lölling District, Hüttenberger Erzberg, Hüttenberg, Friesach - Hüttenberg area, Carinthia, Austria
Year of Discovery:1953

Physical Properties of Kahlerite

Hardness (Mohs):2 - 2½

Crystallography of Kahlerite

Crystal System:Tetragonal
Cell Parameters:a = 14.3Å, c = 21.97Å
Ratio:a:c = 1 : 1.536
Unit Cell Volume:V 4,492.65 ų (Calculated from Unit Cell)

Optical Data of Kahlerite

Type:Uniaxial (-)
RI values: nω = 1.634 nε = 1.632
Maximum Birefringence:δ = 0.002

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate

Chemical Properties of Kahlerite

Formula:
Fe(UO
 
2
)
 
2
(AsO
 
4
)
 
2
·12H
 
2
O
Essential elements:As, Fe, H, O, U
All elements listed in formula:As, Fe, H, O, U

Relationship of Kahlerite to other Species

Related to:
  • Autunite Group
    • Related Minerals - Nickel-Strunz Grouping):

    - +
    8.EB.05Autunite
    Ca(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·11H
     
    2
    		O
    8.EB.05Heinrichite
    Ba(UO
     
    2
    		)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·10H
     
    2
    		O
    8.EB.05Nováčekite
    Mg(UO
     
    2
    		)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    8.EB.05Saléeite
    Mg(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·10H
     
    2
    		O
    8.EB.05Torbernite
    Cu(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    8.EB.05Uranocircite
    Ba(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 10H
     
    2
    		O
    8.EB.05Uranospinite
    Ca(UO
     
    2
    		)(AsO
     
    4
    		)
     
    2
    		·10H
     
    2
    		O
    8.EB.05Xiangjiangite
    (Fe
    3+
     
    		,Al)(UO
     
    2
    		)
     
    4
    		[OH|(SO
     
    4
    		)
     
    2
    		|(PO
     
    4
    		)
     
    2
    		] · 22H
     
    2
    		O
    8.EB.05Zeunerite
    Cu(UO
     
    2
    		)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    8.EB.05UM1997-18-AsO:HNiU
    Ni(UO
     
    2
    		)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·6-8H
     
    2
    		O
    8.EB.05Metarauchite
    Ni(UO
     
    2
    		)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·8H
     
    2
    		O
    8.EB.10Bassetite
    Fe
    2+
     
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Lehnerite
    Mn
    2+
     
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Meta-autunite
    Ca(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		· 6-8H
     
    2
    		O
    8.EB.10Metasaléeite
    Mg(UO
     
    2
    		)(PO
     
    4
    		)
     
    2
    		·8H
     
    2
    		O
    8.EB.10Metauranocircite
    Ba(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 7H
     
    2
    		O
    8.EB.10Metauranospinite
    Ca(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Metaheinrichite
    Ba(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Metakahlerite
    Fe
    2+
     
    		(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Metakirchheimerite
    Co(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Metanováčekite
    Mg(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 4-8H
     
    2
    		O
    8.EB.10Metatorbernite
    Cu(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Metazeunerite
    Cu(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    8.EB.10Przhevalskite
    Pb
     
    2
    		(UO
     
    2
    		)
     
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    		 · 3H
     
    2
    		O
    8.EB.10Meta-lodèvite
    8.EB.15Abernathyite
    K
     
    2
    		(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    8.EB.15Chernikovite
    (H
     
    3
    		O)
     
    2
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    8.EB.15Meta-ankoleite
    K
     
    2
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    8.EB.15Natrouranospinite
    (Na
     
    2
    		,Ca)(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 5H
     
    2
    		O
    8.EB.15Trögerite
    (UO
     
    2
    		)
     
    3
    		(AsO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O (?)
    8.EB.15Uramphite
    (NH
     
    4
    		)
     
    2
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    8.EB.15Uramarsite
    (NH
     
    4
    		,H
     
    3
    		O)
     
    2
    		(UO
     
    2
    		)
     
    2
    		[(AsO
     
    4
    		,PO
     
    4
    		)]
     
    2
    		 · 6H
     
    2
    		O
    8.EB.20Threadgoldite
    Al(UO
     
    2
    		)
     
    2
    		[OH|(PO
     
    4
    		)
     
    2
    		] · 8H
     
    2
    		O
    8.EB.20Chistyakovaite
    Al(UO
     
    2
    		)
     
    2
    		[(F,OH)|(AsO
     
    4
    		)
     
    2
    		] · 6.5H
     
    2
    		O
    8.EB.25Arsenuranospathite
    HAl(UO
     
    2
    		)
     
    4
    		(AsO
     
    4
    		)
     
    4
    		·40H
     
    2
    		O
    8.EB.25Uranospathite
    HAl(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		·40H
     
    2
    		O
    8.EB.30Vochtenite
    (Fe
    2+
     
    		,Mg)Fe
    3+
     
    		(UO
     
    2
    		)
     
    4
    		[OH|(PO
     
    4
    		)
     
    4
    		] · 12-13H
     
    2
    		O
    8.EB.35Coconinoite
    Fe
    3+
    2
    		Al
     
    2
    		(UO
     
    2
    		)
     
    2
    		[(OH)
     
    2
    		|SO
     
    4
    		|(PO
     
    4
    		)
     
    4
    		] · 20H
     
    2
    		O
    8.EB.40Ranunculite
    HAlUO
     
    2
    		PO
     
    4
    		(OH)
     
    3
    		·4H
     
    2
    		O
    8.EB.45Triangulite
    Al
     
    3
    		(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		(OH)
     
    5
    		·5H
     
    2
    		O
    8.EB.50Furongite
    Al
     
    13
    		(UO
     
    2
    		)
     
    7
    		(PO
     
    4
    		)
     
    13
    		(OH)
     
    14
    		 · 58H
     
    2
    		O
    8.EB.55Sabugalite
    HAl(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		·16H
     
    2
    		O
    Related Minerals - Hey's Index Grouping:

    - +
    20.7.1Trögerite
    (UO
     
    2
    		)
     
    3
    		(AsO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O (?)
    20.7.2Natrouranospinite
    (Na
     
    2
    		,Ca)(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 5H
     
    2
    		O
    20.7.3Abernathyite
    K
     
    2
    		(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    20.7.4Metazeunerite
    Cu(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    20.7.5Zeunerite
    Cu(UO
     
    2
    		)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    20.7.6Metanováčekite
    Mg(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 4-8H
     
    2
    		O
    20.7.7Nováčekite
    Mg(UO
     
    2
    		)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    20.7.8Arsenuranylite
    Ca(UO
     
    2
    		)
     
    4
    		[(OH)
     
    2
    		|AsO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    20.7.9Metauranospinite
    Ca(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    20.7.10Uranospinite
    Ca(UO
     
    2
    		)(AsO
     
    4
    		)
     
    2
    		·10H
     
    2
    		O
    20.7.11Metaheinrichite
    Ba(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    20.7.12Heinrichite
    Ba(UO
     
    2
    		)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·10H
     
    2
    		O
    20.7.13Metalodèvite
    Zn(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 10H
     
    2
    		O
    20.7.14Arsenuranospathite
    HAl(UO
     
    2
    		)
     
    4
    		(AsO
     
    4
    		)
     
    4
    		·40H
     
    2
    		O
    20.7.15Hallimondite
    Pb
     
    2
    		(UO
     
    2
    		)[AsO
     
    4
    		]
     
    2
    		 · nH
     
    2
    		O, 0 ≤ n ≤ 0.5
    20.7.16Hügelite
    Pb
     
    2
    		(UO
     
    2
    		)
     
    3
    		[O|AsO
     
    4
    		]
     
    2
    		 · 5H
     
    2
    		O
    20.7.17Asselbornite
    Pb(UO
     
    2
    		)
     
    4
    		(BiO)
     
    3
    		(AsO
     
    4
    		)
     
    2
    		(OH)
     
    7
    		·4H
     
    2
    		O
    20.7.18Metakahlerite
    Fe
    2+
     
    		(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    20.7.20Metakirchheimerite
    Co(UO
     
    2
    		)
     
    2
    		[AsO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O

    Other Names for Kahlerite

    Other Languages:
    German:Kahlerit
    Spanish:Kahlerita

    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 Kahlerite

    Reference List:American Mineralogist: 39: 1038.

    Walenta, K. (1964): Rare arsenate minerals with special consideration of occurrences in the Black Forest. Mineral. Petrog. Mitt. 9, 111-174. (in German)

    Internet Links for Kahlerite

    Search Engines:
  • Look for Kahlerite on Google
  • Look for Kahlerite images on Google
    • External Links:
  • Look for Kahlerite on Webmineral
  • Look for Kahlerite on Athena Mineralogy
  • Look for Kahlerite on Wikipedia
  • Look for Kahlerite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Kahlerite in the Natural History Museum (London) online catalogue
  • Kahlerite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Fabre Minerals - search for Kahlerite specimens
  • Buy from David K Joyce minerals
  • The Arkenstone - Fine Minerals
  • Find Kahlerite on www.crystalclassics.co.uk
  • Buy Fine Minerals from mineralsweb.com
  • Search for - Kahlerite - on e-Rocks Mineral Sales & Auctions
  • Top quality minerals from Kristalle of California
  • Search for Kahlerite on minvision.com
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Fine Minerals from Dan Weinrich Minerals
  • rare and unusual minerals mainly crystallized
  • Wilensky Fine Minerals
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

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

    Localities for Kahlerite

    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.
    Austria
     
    • Carinthia
      • Friesach - Hüttenberg area
        • Hüttenberg
          • Hüttenberger Erzberg
            • Lölling District
    		H. Meixner: Der Karinthin 23:277-280 (1953)
    • Salzburg
      • St Johann im Pongau
        • Mühlbach am Hochkönig
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Ostrov
    		Lapis 2002(7/8), 63-65
    France
     
    • Languedoc-Roussillon
      • Hérault
        • Lodève
    		Le Règne Minéral, Hors Série IV (1998)
    Le Règne Minéral, Hors Série IV (1998)
    Germany
     
    • Saxony
      • Erzgebirge
    		Lapis 30(7/8):78-80 (2005)
    Namibia
     
    • Kunene Region
      • Damaraland District
        • Omaruru
    		Jahn, S. & Bast, R. (2006): Der Krantzberg bei Omaruru, Namibia, und die Mineralvorkommen in seiner Umgebung. Mineralien-Welt 17 (3), 32-48.
    UK
     
    • Scotland
      • Dumfries & Galloway (Kirkcudbrightshire)
        • Dalbeattie
    		BMS Database
        • Needle's Eye
    		BMS Database
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 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.