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Autunite Group

A group of related mineral species
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02119270017272471111706.jpg
Nováčekite, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
05747810017271927373183.jpg
Uranospinite

Mas d'Alary village, Lodève, Lodève, Hérault, Occitanie, France
02299610017271927321489.jpg
Uranospinite, etc.

Bricco Volti - Monte Ortieul quarrying area, Montoso Quarries, Bagnolo Piemonte, Cuneo Province, Piedmont, Italy
06414260017867017807472.jpg
Nováčekite, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
05747810017271927373183.jpg
Uranospinite

Mas d'Alary village, Lodève, Lodève, Hérault, Occitanie, France
06359590017867017866647.jpg
Uranospinite, etc.

Bricco Volti - Monte Ortieul quarrying area, Montoso Quarries, Bagnolo Piemonte, Cuneo Province, Piedmont, Italy
02119270017272471111706.jpg
Nováčekite, etc.

Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany
05747810017271927373183.jpg
Uranospinite

Mas d'Alary village, Lodève, Lodève, Hérault, Occitanie, France
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About Autunite GroupHide

Formula:
A(UO2)2(TO4)2 · 8-16H2O
A = Cu, Ca, Ba, Ni, Mn, Fe or (HAl)
and T = P or As.
Name:
After a prominent member of the group.
A group of layer-structured uranyl phosphates and arsenates.
Slightly more hydrated versions of the minerals in the Meta-autunite Group: A1-2(UO2)2(TO4)2 · 5-10H2O.


Unique IdentifiersHide

Mindat ID:
29274
Long-form identifier:
mindat:1:1:29274:0

Classification of Autunite GroupHide

00572780017683530272384.jpg
The autunite-type sheet

The autunite-type sheet found in the minerals of the autunite group. The T site is variably occupied by either P or As. Additional speciation in the group is provided by the interlayer cations and hydration.

IMA Classification of Autunite GroupHide

Approval history:
Though widely in use, the IMA has not approved nomenclature and classification for this group.

Chemistry of Autunite GroupHide

Mindat Formula:
A(UO2)2(TO4)2 · 8-16H2O

A = Cu, Ca, Ba, Ni, Mn, Fe or (HAl)
and T = P or As.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0011096ZeuneriteHennig C, Reck G, Reich T, Robberg A, Kraus W, Sieler J (2003) EXAFS and XRD investigations of zeunerite and meta-zeunerite Zeitschrift fur Kristallographie 218 37-452003synthetic0293
0006009HeinrichiteLocock A J, Burns P C, Flynn T M (2005) Structures of strontium- and barium-dominant compounds that contain the autunite-type sheet The Canadian Mineralogist 43 721-73320050293
0005831ZeuneriteLocock A J, Burns P C (2003) Crystal structures and synthesis of the copper-dominant members of the autunite and meta-autunite groups: Torbernite, zeunerite, metatorbernite and metazeunerite The Canadian Mineralogist 41 489-50220030293
0005830TorberniteLocock A J, Burns P C (2003) Crystal structures and synthesis of the copper-dominant members of the autunite and meta-autunite groups: Torbernite, zeunerite, metatorbernite and metazeunerite The Canadian Mineralogist 41 489-50220030293
0002977AutuniteLocock A J, Burns P C (2003) The crystal structure of synthetic autunite, Ca[(UO2)(PO4)]2(H2O)11 American Mineralogist 88 240-24420030293
CIF Raw Data - click here to close

Synonyms of Autunite GroupHide

Relationship of Autunite Group to other SpeciesHide

Autunite Group Members:
Autunite Ca(UO2)2(PO4)2 · 10-12H2OOrth. mmm(2/m2/m2/m) : Pnma
Bassetite Fe2+(UO2)2(PO4)2 · 10H2OMon. 2/m
Heinrichite Ba(UO2)2(AsO4)2 · 10H2OMon. 2/m : P2/b
Hydronováčekite Mg(UO2)2(AsO4)2 · 12H2OTric. 1 : P1
Kahlerite Fe2+(UO2)2(AsO4)2 · 12H2OTet. 4/m : P42/n
Nováčekite Mg(UO2)2(AsO4)2 · 10H2OMon. 2/m
Rauchite Ni(UO2)2(AsO4)2 · 10H2OTric. 1 : P1
Sabugalite HAl(UO2)4(PO4)4 · 16H2OMon. 2/m : B2/m
Saléeite Mg(UO2)2(PO4)2 · 10H2OMon. 2/m
Torbernite Cu(UO2)2(PO4)2 · 12H2OTet. 4/mmm(4/m2/m2/m) : I4/mmm
Uranocircite Ba(UO2)2(PO4)2 · 10H2OTet.
Uranospinite Ca(UO2)2(AsO4)2 · 10H2OTet. 4/mmm(4/m2/m2/m) : P4/nmm
Zeunerite Cu(UO2)2(AsO4)2 · 12H2OTet. 4/mmm(4/m2/m2/m) : I4/mmm
Click on any node to view relationships. Formula-derived relationship network for the group members above. Use Find related species to add formula-neighbour species outside the current group view. Solid links show inferred chemical differences; dashed violet links show same-formula crystallographic differences. Hydration states are not treated as relationship changes. These relationships do not imply any real-world substitution reactions between these species.
Minerals structurally related to group:
Meta-autunite GroupA1-2(UO2)2(TO4)2 · 5-10H2O
Structurally related to group(s):
Sincosite Group[A(H2O)4](VO)2(TO4)2

RadioactivityHide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Autunite GroupHide

References for Autunite GroupHide

Localities for Autunite GroupHide

Showing 3,618 localities.

This 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.
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Locality ListShow

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