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Meta-autunite

Big Photo

Les Oudots Quarry, Issy-l'Evêque, Saône-et-Loire, Burgundy, France
© Peter Haas

Show Meta-autunite Photos (35)
Formula:
Ca(UO
 
2
)
 
2
[PO
 
4
]
 
2
· 6-8H
 
2
O
System:TetragonalColour:greenish yellow, lemon ...
Hardness:2 - 2½


Meta-autunite Group.

Classification of Meta-autunite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/E.02-90
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.1.2

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
Hey's CIM Ref.:19.11.14

19 : Phosphates
11 : Phosphates of U
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Type Occurrence of Meta-autunite

Type Locality:Daybreak Mine (Dahl lease), Mount Kit Carson, Spokane Co., Washington, USA
Year of Discovery:1904

Physical Properties of Meta-autunite

Lustre:Pearly
Colour:greenish yellow, lemon yellow
Streak:pale yellow
Hardness (Mohs):2 - 2½
Cleavage:Perfect

Crystallography of Meta-autunite

Crystal System:Tetragonal
Cell Parameters:a = 6.97Å, c = 8.47Å
Ratio:a:c = 1 : 1.215
Unit Cell Volume:V 411.48 ų (Calculated from Unit Cell)

Optical Data of Meta-autunite

Type:Uniaxial (-)
RI values: nω = 1.607 nε = 1.584
Maximum Birefringence:δ = 0.023

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

Chemical Properties of Meta-autunite

Formula:
Ca(UO
 
2
)
 
2
[PO
 
4
]
 
2
· 6-8H
 
2
O
Essential elements:Ca, H, O, P, U
All elements listed in formula:Ca, H, O, P, U
Common Impurities:Ba,Mg

Relationship of Meta-autunite to other Species

Related to:
  • Meta-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.05Kahlerite
    Fe(UO
     
    2
    		)
     
    2
    		(AsO
     
    4
    		)
     
    2
    		·12H
     
    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.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.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.25Sabugalite
    HAl(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		·16H
     
    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
    Related Minerals - Hey's Index Grouping:
    19.11.1Lermontovite
    UPO
     
    4
    		·OH·H
     
    2
    		O
    19.11.2Metavanmeersscheite
    U
    4+
     
    		(UO
     
    2
    		)
     
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    		 · 2H
     
    2
    		O
    19.11.3Vanmeersscheite
    U
    4+
     
    		(UO
     
    2
    		)
     
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    		 · 4H
     
    2
    		O
    19.11.4Chernikovite
    (H
     
    3
    		O)
     
    2
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    19.11.5Vyacheslavite
    UPO
     
    4
    		(OH)·nH
     
    2
    		O
    19.11.6Metanatroautunite
    NaUO
     
    2
    		PO
     
    4
    		·4H
     
    2
    		O
    19.11.7Yingjiangite
    (K,Ca)(UO
     
    2
    		)
     
    3
    		[OH|(H
     
    2
    		O,OH)|(PO
     
    4
    		)
     
    2
    		] · 3H
     
    2
    		O
    19.11.8Meta-ankoleite
    K
     
    2
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    19.11.9Uramphite
    (NH
     
    4
    		)
     
    2
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    19.11.10Torbernite
    Cu(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    19.11.11Metatorbernite
    Cu(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    19.11.12Saléeite
    Mg(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·10H
     
    2
    		O
    19.11.13Ningyoite
    CaU(PO
     
    4
    		)
     
    2
    		·1-2H
     
    2
    		O
    19.11.15Autunite
    Ca(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·11H
     
    2
    		O
    19.11.16Pseudo-autunite
    (H
     
    3
    		O)
     
    4
    		Ca
     
    2
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    4
    		 · 5H
     
    2
    		O (?)
    19.11.17Phurcalite
    Ca
     
    2
    		(UO
     
    2
    		)
     
    3
    		[O|PO
     
    4
    		]
     
    2
    		 · 7H
     
    2
    		O
    19.11.18Phosphuranylite
    (H
     
    3
    		O)
     
    3
    		KCa(UO
     
    2
    		)
     
    7
    		[O|PO
     
    4
    		]
     
    4
    		 · 8H
     
    2
    		O
    19.11.19Ulrichite
    CaCu(UO
     
    2
    		)[PO
     
    4
    		]
     
    2
    		 · 4H
     
    2
    		O
    19.11.20Bergenite
    Ca
     
    2
    		Ba
     
    4
    		[(UO
     
    2
    		)
     
    3
    		O
     
    2
    		(PO
     
    4
    		)
     
    2
    		]
     
    3
    		·16H
     
    2
    		O
    19.11.21Metauranocircite
    Ba(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 7H
     
    2
    		O
    19.11.22Uranocircite
    Ba(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 10H
     
    2
    		O
    19.11.23Ranunculite
    HAlUO
     
    2
    		PO
     
    4
    		(OH)
     
    3
    		·4H
     
    2
    		O
    19.11.24Triangulite
    Al
     
    3
    		(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		(OH)
     
    5
    		·5H
     
    2
    		O
    19.11.25Mundite
    Al(UO
     
    2
    		)
     
    3
    		[(OH)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		] · 5.5H
     
    2
    		O
    19.11.26Upalite
    Al(UO
     
    2
    		)
     
    3
    		(PO
     
    4
    		)
     
    2
    		O(OH)·7H
     
    2
    		O
    19.11.27Furongite
    Al
     
    13
    		(UO
     
    2
    		)
     
    7
    		(PO
     
    4
    		)
     
    13
    		(OH)
     
    14
    		 · 58H
     
    2
    		O
    19.11.28Threadgoldite
    Al(UO
     
    2
    		)
     
    2
    		[OH|(PO
     
    4
    		)
     
    2
    		] · 8H
     
    2
    		O
    19.11.29Phuralumite
    Al
     
    2
    		(UO
     
    2
    		)
     
    3
    		[(OH)
     
    2
    		|(PO
     
    4
    		)
     
    3
    		] · 13H
     
    2
    		O
    19.11.30Moreauite
    Al
     
    3
    		UO
     
    2
    		(PO
     
    4
    		)
     
    3
    		(OH)
     
    2
    		·13H
     
    2
    		O
    19.11.31Sabugalite
    HAl(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		·16H
     
    2
    		O
    19.11.32Uranospathite
    HAl(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		·40H
     
    2
    		O
    19.11.33Althupite
    AlTh(UO
     
    2
    		)
     
    7
    		[O
     
    2
    		|(OH)
     
    5
    		|(PO
     
    4
    		)
     
    4
    		] · 15H
     
    2
    		O
    19.11.34Françoisite-(Nd)
    (Nd,Ce,Sm)(UO
     
    2
    		)
     
    3
    		[O|OH|(PO
     
    4
    		)
     
    2
    		] · 6H
     
    2
    		O
    19.11.35Kivuite
    H
     
    2
    		Th(UO
     
    2
    		)
     
    3
    		[O|OH|(PO
     
    4
    		)
     
    2
    		] · 6H
     
    2
    		O (?)
    19.11.36Parsonsite
    Pb
     
    2
    		(UO
     
    2
    		)[PO
     
    4
    		]
     
    2
    		 · 2H
     
    2
    		O
    19.11.37Dewindtite
    Pb(UO
     
    2
    		)
     
    3
    		[OH|PO
     
    4
    		]
     
    2
    		 · 3H
     
    2
    		O
    19.11.38Dumontite
    Pb
     
    2
    		(UO
     
    2
    		)
     
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    		 · 3H
     
    2
    		O
    19.11.39Przhevalskite
    Pb
     
    2
    		(UO
     
    2
    		)
     
    3
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
    		 · 3H
     
    2
    		O
    19.11.40Lehnerite
    Mn
    2+
     
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    19.11.41Bassetite
    Fe
    2+
     
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    19.11.42Vochtenite
    (Fe
    2+
     
    		,Mg)Fe
    3+
     
    		(UO
     
    2
    		)
     
    4
    		[OH|(PO
     
    4
    		)
     
    4
    		] · 12-13H
     
    2
    		O

    Other Names for Meta-autunite

    German names:
    Meta-Autunit
    Russian names:
    Метаотенит

    Other Information

    Health Warning:Contains uranium - always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest. Avoid prolonged exposure in proximity of the body. Store away from inhabited areas.

    References for Meta-autunite

    Reference List:Makarov, E.S. and Ivanov, V.I. (1960) The crystal structure of meta-autunite, Ca(UO2)2(PO4)2·6H2O. Doklady of the Academy of Sciences of the USSR: 132: 601-603.

    American Mineralogist (1963): 48: 1389-1393.

    American Mineralogist (1981): 66: 1068-1072.

    Bulletin de la Société française de Minéralogie et de Cristallographie: 81: 4-10.

    Doklady Akademii Nauk SSSR: 132: 601-603.

    Burns, P.C. (2005) U 6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.

    Internet Links for Meta-autunite

    Search Engines:
  • Look for Meta-autunite on Google
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    • External Links:
  • Look for Meta-autunite on Webmineral
  • Look for Meta-autunite on Athena Mineralogy
  • Look for Meta-autunite on Wikipedia
  • Look for Meta-autunite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Meta-autunite in the Natural History Museum (London) online catalogue
  • Meta-autunite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • rare and unusual minerals mainly crystallized
  • Search for Meta-autunite on minvision.com
  • Fabre Minerals - search for Meta-autunite specimens
  • Wilensky Fine Minerals
  • Buy Minerals and Crystals from Crystalarium.com
  • Fine Minerals from Dan Weinrich Minerals
  • Find Meta-autunite on www.crystalclassics.co.uk
  • Top quality minerals from Kristalle of California
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Wright's Rock Shop - excellent mineral specimens since 1970
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    Localities for Meta-autunite

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