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MINERAL CLASSIFICATION / SYSTEMATIK der MINERALE

           based on E.H. Nickel & M.C. Nichols (2009), H. Strunz & E.H. Nickel (2001),
           revised by Thomas Witzke (2022)



7. SULFATES
(Sulfates, Selenates, Tellurates, Chromates, Molybdates, Wolframates)


7.E: Uranylsulfates


7.EA. Uranylsulfates, without cations
 
7.EA.005. Shumwayite
 
Shumwayite [(UO2)(SO4)(H2O)2]2·H2O mon. IMA 2015-058

Shumwayite: double-chains/ribbons of uranyl pentagonal bipyramids linked with sulfate tetrahedra, [(UO2)(SO4)(H2O)2].


 
7.EA.010. Scenicite
 
Scenicite [(UO2)(SO4)(H2O)2]2·3H2O mon., Pca21 IMA 2021-057

Scenicite: double-chains/ribbons of uranyl pentagonal bipyramids linked with sulfate tetrahedra, [(UO2)(SO4)(H2O)2], similar to Shumwayite.


 
7.EA.015. Uranopilite group
 
Uranopilite [(UO2)6(SO4)O2(OH)6(H2O)6]·8H2O tric., P1 G
Metauranopilite (UO2)6(SO4)(OH)10·5H2O orth. (?) Rn

Uranopilite: chains of clusters of six edge-sharing uranyl pentagonal bipyramids linked with sulfate tetrahedra, [(UO2)6(SO4)O2(OH)6(H2O)6]


 
7.EA.020. Jáchymovite
 
Jáchymovite (UO2)8(SO4)(OH)14·13H2O mon. FOTO IMA 1994-025



 
 
7.EB. With medium-sized and large cations, clusters of uranyl pentagonal bipyramids and sulfate tetrahedra
 
7.EB.005. Klaprothite group
 
Klaprothite Na6(UO2)(SO4)4·4H2O mon., P21/c IMA 2015-087
Péligotite Na6(UO2)(SO4)4·4H2O mon., P1 IMA 2015-088

Klaprothite, Péligotite: clusters of single uranyl pentagonal bipyramids with sulfate tetrahedra, [(UO2)(SO4)4]6-.


 
7.EB.010. Belakovskiite
 
Belakovskiite Na7(UO2)(SO4)4(SO3OH)·3H2O tric., P1 IMA 2013-075

Belakovskiite: clusters of single uranyl pentagonal bipyramids with sulfate tetrahedra, [(UO2)(SO4)4]6-.


 
7.EB.015. Lussierite
 
Lussierite Na10(UO2)(SO4)4(SO4)2·3H2O mon., Cc IMA 2018-101

Lussierite: clusters of single uranyl pentagonal bipyramids with sulfate tetrahedra, [(UO2)(SO4)4]6-.


 
7.EB.020. Bluelizardite
 
Bluelizardite Na7(UO2)(SO4)4Cl·2H2O mon., C2/c IMA 2013-062

Bluelizardite: clusters of two uranyl pentagonal bipyramids with sulfate tetrahedra, [(UO2)2(SO4)8]4-.


 
7.EB.025. Seaborgite
 
Seaborgite LiK2Na6(UO2)(SO4)5(SO3OH)·H2O tric., P1 IMA 2019-087

Seaborgite: clusters of two uranyl pentagonal bipyramids with sulfate tetrahedra, [(UO2)2(SO4)8]4-.


 
7.EB.030. Ottohahnite
 
Ottohahnite Na6(UO2)2(SO4)5(H2O)7·1.5H2O tric., P1 IMA 2015-098

Ottohahnite: clusters of four uranyl pentagonal bipyramids with sulfate tetrahedra, [(UO2)4(SO4)10]12-.



 
 
7.EC. With medium-sized and large cations, chains of uranyl pentagonal bipyramids and sulfate tetrahedra
 
7.EC.005. Adolfpateraite
 
Adolfpateraite K(UO2)(SO4)(OH)·H2O mon., P21/c IMA 2011-042

Adolfpateraite: chains of uranyl pentagonal bipyramids with hydroxyl and sulfate tetrahedra.


 
7.EC.010. Gurzhiite
 
Gurzhiite Al(UO2)(SO4)2F·10H2O tric., P1 IMA 2021-086


 
7.EC.015. Rietveldite-Svornostite group
 
Rietveldite Fe(UO2)(SO4)2·5H2O tric., P1 IMA 2016-081
Svornostite K2Mg(UO2)2(SO4)4·8H2O orth., Pmn21 IMA 2014-078
Oldsite K2Fe(UO2)2(SO4)4·8H2O orth., Pmn21 IMA 2021-075

Rietveldite, Svornostite: chains of uranyl pentagonal bipyramids linked with sulfate tetrahedra, [(UO2)(SO4)2(H2O)]2-.


 
7.EC.020. Oppenheimerite-Bobcookite group
 
Oppenheimerite Na2(UO2)(SO4)2·3H2O tric., P1 IMA 2014-073
Bobcookite NaAl(UO2)2(SO4)4·18H2O tric., P1 IMA 2014-030

Oppenheimerite, Bobcookite: chains of uranyl pentagonal bipyramids linked with sulfate tetrahedra, [(UO2)(SO4)2(H2O)]2-.


 
7.EC.025. Fermiite
 
Fermiite Na4(UO2)(SO4)3·2H2O orth., Pmn21 IMA 2014-068

Fermiite: chains of uranyl pentagonal bipyramids linked with sulfate tetrahedra.


 
7.EC.030. Meisserite
 
Meisserite Na5(UO2)(SO4)3(SO3OH)·H2O tric, P1 IMA 2013-039

Meisserite: chains of uranyl pentagonal bipyramids linked with sulfate tetrahedra.


 
7.EC.035. Pseudomeisserite-(NH4)
 
Pseudomeisserite-(NH4) (NH4)2Na4(UO2)2(SO4)5·4H2O mon., P24/c IMA 2018-166

Pseudomeisserite-(NH4): chains of uranyl pentagonal bipyramids linked with sulfate tetrahedra.


 
7.EC.040. Navrotskyite
 
Navrotskyite K2Na10(UO2)3(SO4)9·2H2O orth., Pbcm IMA 2019-026

Navrotskyite: chains of uranyl pentagonal bipyramids linked with sulfate tetrahedra.


 
7.EC.045. Alwilkinsite-(Y)
 
Alwilkinsite-(Y) Y(UO2)3(SO4)2O(OH)3(H2O)7·7H2O orth., P212121 IMA 2015-097

Alwilkinsite-(Y): ribbons of edge-sharing uranyl pentagonal bipyramids with sulfate tetrahedra.



 
 
7.ED. With medium-sized and large cations, sheets of uranyl pentagonal bipyramids and sulfate tetrahedra
 
7.ED.005. Geschieberite
 
Geschieberite K2(UO2)(SO4)2·2H2O orth., Pna21 IMA 2014-006

Geschieberite: sheets of isolated uranyl pentagonal bipyramids linked with sulfate tetrahedra.


 
7.ED.010. Leydetite group
 
Magnesioleydetite Mg(UO2)(SO4)2·11H2O mon., C2/c IMA 2017-063
Leydetite Fe(UO2)(SO4)2·11H2O mon., C2/c IMA 2012-065
Shinarumpite Co(UO2)(SO4)2·11H2O mon., P21/c IMA 2021-105

Leydetite group minerals: sheets of isolated uranyl pentagonal bipyramids linked with sulfate tetrahedra.
Shinarumpite, structural formula [Co(H2O)6][(UO2)(SO4)2(H2O)]·4H2O, is very closely related to leydetite. The arrangement of the sulfate tetrahedra is slightly different.


 
7.ED.015. Wetherillite
 
Wetherillite Na2Mg(UO2)2(SO4)4·18H2O mon., P21/c IMA 2014-044

Wetherillite: sheets of isolated uranyl pentagonal bipyramids linked with sulfate tetrahedra.


 
7.ED.020. Straßmannite
 
Straßmannite Al(UO2)(SO4)2F·16H2O mon., C2/c IMA 2017-086

Straßmannite: sheets of isolated uranyl pentagonal bipyramids linked with sulfate tetrahedra.


 
7.ED.025. Nitscheite
 
Nitscheite (NH4)2[(UO2)2(SO4)3(H2O)2]·3H2O mon., P21/n IMA 2020-078

Nitscheite: sheets of isolated uranyl pentagonal bipyramids linked with sulfate tetrahedra.


 
7.ED.030. Johannite
 
Johannite Cu(UO2)2(SO4)2(OH)2·8H2O tric., P1 FOTO G

Johannite: sheets of edge-sharing pairs of uranyl pentagonal bipyramids linked with sulfate tetrahedra, [(UO2)2(SO4)2(OH)2]2-.


 
7.ED.035. Deliensite
 
Deliensite Fe(UO2)2(SO4)2(OH)2·7H2O orth., Pnn2 FOTO IMA 1996-013

Deliensite: sheets of edge-sharing pairs of uranyl pentagonal bipyramids linked with sulfate tetrahedra, [(UO2)2(SO4)2(OH)2]2-.


 
7.ED.040. Plášilite group
 
Plášilite Na(UO2)(SO4)(OH)·2H2O mon., P21/c IMA 2014-021
Feynmanite Na(UO2)(SO4)(OH)·3.5H2O mon., P2/n IMA 2017-035

Plášilite, Feynmanite: sheets of edge-sharing pairs of uranyl pentagonal bipyramids linked with sulfate tetrahedra, [(UO2)2(SO4)2(OH)2]2-.


 
7.ED.045. Greenlizardite group
 
Meitnerite (NH4)(UO2)(SO4)(OH)·2H2O tric., P1 IMA 2017-065
Greenlizardite (NH4)Na(UO2)2(SO4)2(OH)2·4H2O tric., P1 IMA 2017-001

Meitnerite, Greenlizardite: sheets of edge-sharing pairs of uranyl pentagonal bipyramids linked with sulfate tetrahedra, [(UO2)2(SO4)2(OH)2]2-.


 
7.ED.050. Beshtauite
 
Beshtauite (NH4)2(UO2)(SO4)2·2H2O mon., P24/c IMA 2012-051

Beshtauite: sheets of corner-sharing uranyl pentagonal bipyramids and sulfate tetrahedra, + [(UO2)(SO4)2(H2O)]2-.


 
7.ED.055. Zippeite group
 
Zippeite K3(UO2)4(SO4)2O3(OH)·3H2O mon., C2 FOTO Rd
Ammoniozippeite (NH4)2(UO2)2(SO4)O2·H2O mon., C2 IMA 2017-073
Natrozippeite Na5(UO2)8(SO4)4O5(OH)3·12H2O mon., P21/n FOTO IMA 1971-004, Rn
Magnesiozippeite Mg(UO2)2(SO4)O2·3.5H2O mon., C2/m FOTO IMA 1971-007, Rd
Nickelzippeite Ni2(UO2)6(SO4)3(OH)10·16H2O mon., C2/m IMA 1971-005
Cobaltzippeite Co(UO2)2(SO4)O2·3.5H2O mon., C2/m IMA 1971-006, Rn
Zinczippeite Zn(UO2)2(SO4)O2·3.5H2O mon., C2/m IMA 1971-008, Rn
Plavnoite K0.8Mn0.6(UO2)2(SO4)O2·3.5H2O mon., B2/m IMA 2015-059
Redcanyonite (NH4)2Mn(UO2)4 (SO4)2O4·4H2O mon., C2/m IMA 2016-082
Pseudojohannite Cu3(UO2)4(SO4)2O4(OH)2·12H2O tric. IMA 2000-019
Rabejacite Ca(UO2)4(SO4)2O4·8H2O tric., P1 FOTO IMA 1992-043
Marécottiite Mg3(UO2)8(SO4)4O6(OH)2·28H2O tric., P1 IMA 2001-056
Sejkoraite-(Y) Y2(UO2)8(SO4)4O6(OH)2·26H2O tric., P1 IMA 2009-008

Zippeite group: sheets of ribbons of edge-sharing uranyl pentagonal bipyramids connected via sulfate tetrahedra.


 
7.ED.060. Mathesiusite group
 
Mathesiusite K5(UO2)4(SO4)4(VO5)·4H2O tetr., P4/n IMA 2013-046
Ammoniomathesiusite (NH4)5(UO2)4(SO4)4(VO5)·4H2O tetr., P4/n IMA 2017-077

Mathesiusite: sheets of [(UO2)4(SO4)4(VO5)]5- clusters.






 
 

G = Grandfathered minerals: original description preceded the establishment of the CNMNC in 1959, and generally regarded as a valid species
A or IMA No. = Minerals approved by the CNMNC
Rd = Redefinition of the mineral approved by the CNMNC
Rn = Renamed with approval by the CNMNC
Q = Questionable mineral


© Thomas Witzke (2022)


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