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

Metakirchheimerite




Formula:
Co(UO
 
2
)
 
2
[AsO
 
4
]
 
2
 · 8H
 
2
O
System:TriclinicColour:pale pink
Hardness:2 - 2½
Name:For Professor Franz Waldemar Kirchheimer (1911–1984), former Director of the Geological Survey of Baden-Württemberg, Germany, geologist, palaeontologist and mining historian, for his contribution on uranium deposits in Baden-Württemberg.


Meta-autunite Group.

The lower hydrate of "kirchheimerite", a non-approved species which contains 12 water molecules per formula unit (Walenta, 1964; Locock et al., 2004).

Classification of Metakirchheimerite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/E.02-50
Nickel-Strunz 10th (pending) edition ID:8.EB.10

8 : PHOSPHATES, ARSENATES, VANADATES
E : Uranyl phosphates and arsenates
B : UO2:RO4 = 1:1
Dana 8th edition ID:40.2a.17.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
Hey's CIM Ref.:20.7.20

20 : Arsenates (also arsenates with phosphate, but without other anions)
7 : Arsenates of U
mindat.org URL:http://www.mindat.org/min-2677.html
Please feel free to link to this page.

Type Occurrence of Metakirchheimerite

Type Locality:Sophia Mine, Böckelsbach valley, Wittichen, Schenkenzell, Black Forest, Baden-Württemberg, Germany
Year of Discovery:1958

Physical Properties of Metakirchheimerite

Colour:pale pink
Streak:white
Hardness (Mohs):2 - 2½
Cleavage:Perfect

Crystallography of Metakirchheimerite

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Space Group:P1
Cell Parameters:a = 7.1955Å, b = 9.7715Å, c = 13.2319Å
α = 75.525°, β = 84.052°, γ = 81.661°
Ratio:a:b:c = 0.736 : 1 : 1.354
Unit Cell Volume:V 889.08 ų (Calculated from Unit Cell)

Optical Data of Metakirchheimerite

Type:Uniaxial (-)
RI values: nω = 1.644 nε = 1.617
Maximum Birefringence:δ = 0.027

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

Chemical Properties of Metakirchheimerite

Formula:
Co(UO
 
2
)
 
2
[AsO
 
4
]
 
2
 · 8H
 
2
O
Essential elements:As, Co, H, O, U
All elements listed in formula:As, Co, H, O, U

Relationship of Metakirchheimerite to other Species

Member of Group:
Meta-autunite Group:
A(UO
 
2
)
 
2
(XO
 
4
)
 
2
·nH
 
2
O (n = 6, 7 or 8)
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.05Kahlerite
Fe(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 12H
 
2
O
8.EB.05Nováčekite-I
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.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
Al
 
1-x
[]
 
x
)[(UO
 
2
)(PO
 
4
)]
 
2
(H
 
2
O)
 
20+3x
F
 
1-3x
, (0 < x < 0.33)
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-I
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
20.7.19Kahlerite
Fe(UO
 
2
)
 
2
(AsO
 
4
)
 
2
 · 12H
 
2
O

Other Names for Metakirchheimerite

Other Languages:
German:Metakirchheimerit
Spanish:Metakirchheimerita

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 Metakirchheimerite

Reference List:Walenta, K. (1958): Die sekundaren Uranmineralien des Schwarzwaldes. Jahresheft geol. Landesant Baden-Wurttemberg, 3, 17-51 [type-description].

American Mineralogist (1959): 44: 466.

Walenta, K. (1964): Rare arsenate minerals with special consideration of occurrences in the Black Forest. Tschermaks Mineralogische und Petrographische Mitteilungen: 9, 111-174. (in German)

Locock, Andrew J.; Burns, Peter C.; Flynn, Theodore M. (2004): Divalent transition metals and magnesium in structures that contain the autunite-type sheet. Canadian Mineralogist 42, 1699-1718.

Votchen, R. & Geominne, A (1984): Synthesis, chrystallographic data, solubility, and electrokinetic properties of meta-zeunerite, meta-kirchheimerite and nickel-uranylarsenate. Physics and Chemistry of Minerals, 11, 95-100 (synthetic material).

Ondrus, Veselovsky, Gabasova, Srein (2003) Supplement to secondary and rock-forming minerals of the Jachymov ore district. Journal of the Czech Geological Society: 48, 4/4: 149-155.

Plášil, J., Čejka, J., Sejkora, J., Hloušek, J., Goliáš, V. (2009): New data for metakirchheimerite from Jáchymov (St. Joachimsthal), Czech Republic. Journal of Geosciences, 54, 373-384

Internet Links for Metakirchheimerite

Search Engines:
  • Look for Metakirchheimerite on Google
  • Look for Metakirchheimerite images on Google
    • External Links:
  • Look for Metakirchheimerite on Webmineral
  • Look for Metakirchheimerite on Athena Mineralogy
  • Look for Metakirchheimerite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Metakirchheimerite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Wilensky Fine Minerals
  • Edwards Minerals - Fine Specimens
  • Buy RARE Minerals from Rocks of Africa
  • Buy from David K Joyce minerals
  • Buy fine minerals and gemstones from Pala International
  • Buy Fine Minerals from mineralsweb.com
  • Lapis Mineral Magazin
  • Wendel Minerals - Auktion & Shop
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Fabre Minerals - search for Metakirchheimerite specimens
  • rare and unusual minerals mainly crystallized
  • Buy minerals from Mineralium.com
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

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

    Localities for Metakirchheimerite

    (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)
    		Ondrus, Veselovsky, Gabasova, Srein (2003) Supplement to secondary and rock-forming minerals of the Jachymov ore district. Journal of the Czech Geological Society: 48, 4/4: 149-155.
    Plášil, J., Čejka, J., Sejkora, J., Hloušek, J., Goliáš, V. (2009): New data for metakirchheimerite from Jáchymov (St. Joachimsthal), Czech Republic. Journal of Geosciences, 54, 373-384.
    France
     
    • Languedoc-Roussillon
      • Hérault
        • Lodève
    		Le Règne Minéral, Hors Série IV (1998)
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Schenkenzell
          • Wittichen
            • Böckelsbach valley
    		American Mineralogist (1959) 44, pp. 466; Tscherm MPM 9 (1964), 111
            • Burgfelsen
    		No reference listed
            • Heubach Valley
    		No reference listed
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2010. 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. Current server date and time: 15th Aug 2010 16:18:13