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Ottohahnite

A valid IMA mineral species
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00801980014948109486734.jpg
Ottohahnite

Blue Lizard Mine, Red Canyon Mining District, San Juan County, Utah, USA
00801980014948109486734.jpg
Ottohahnite

Blue Lizard Mine, Red Canyon Mining District, San Juan County, Utah, USA
03712290014950060201059.jpg
Ottohahnite

Blue Lizard Mine, Red Canyon Mining District, San Juan County, Utah, USA
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About OttohahniteHide

09307350014950060201651.jpg
Otto Hahn
Formula:
Na6(UO2)2(SO4)5(H2O)7 · 1.5H2O
Colour:
yellowish green to greenish-yellow
Hardness:
2½
Crystal System:
Triclinic
Name:
To honour Otto Hahn (8 March 1879 – 28 July 1968), German chemist known as the "father of nuclear chemistry", conducting research on radioactivity and radiochemistry, Nobel Prize winner in the field of Chemistry in 1944 as the discoverer of nuclear fission.
Related to klaprothite and péligotite.

Also chemically related to fermiite and oppenheimerite.

Further relation to sulfate-hydrosulfates belakovskiite and meisserite, and to basic salts plášilite and natrozippeite.

Found together with péligotite and klaprothite; the three minerals are very similar in terms of physical and chemical properties (colour, fracture, hardness, water solubility, fluorescence).

The structure is based on [(UO2)4(SO4)10]12– clusters (different from those in klaprothite and péligotite), with each UO7 polyhedron having a bidentate linkage with one sulphate tetrahedra. Na-O polyhedra provide two types of linkages: (1) for the clusters, to give thin heteropolyhedral slices, and (2) between the slices, to form the framework.


Unique IdentifiersHide

Mindat ID:
47026
Long-form identifier:
mindat:1:1:47026:9
GUID
(UUID V4):
3f6f5a66-7188-4e4b-8c0f-f2d987677be5

IMA Classification of OttohahniteHide

Classification of OttohahniteHide

Strunz-mindat (2023):
7.EC.60

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
E : Uranyl sulfates
C : With medium-sized and large cations

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
OhnIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of OttohahniteHide

Colour:
yellowish green to greenish-yellow
Hardness:
2½ on Mohs scale
Comment:
ca. 2.5
Tenacity:
Brittle
Fracture:
Irregular/Uneven

Optical Data of OttohahniteHide

Type:
Biaxial (-)
RI values:
nα = 1.511(1) nβ = 1.514(1) nγ = 1.537(1)
2V:
Measured: 42° (2), Calculated: 40.2°
Max Birefringence:
δ = 0.026
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r>v, strong
Pleochroism:
Visible
Comments:
X=light yellowish green, Y=colourless, Z=yellowish
green; Y
Comments:
X ∧ a=43°, Y ∧ b=11°, Z ∧ c=29°

Chemistry of OttohahniteHide

Mindat Formula:
Na6(UO2)2(SO4)5(H2O)7 · 1.5H2O
Elements listed:
H, Na, O, S, U - search for minerals with similar chemistry

Crystallography of OttohahniteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 9.97562(19) Å, b = 11.6741(2) Å, c = 14.2903(10) Å
α = 113.518(8)°, β = 104.282(7)°, γ = 91.400(6)°
Ratio:
a:b:c = 0.855 : 1 : 1.224
Unit Cell V:
1464.59 ų
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.81 Å(41)
6.21 Å(100)
4.650 Å(39)
3.462 Å(52)
3.156 Å(35)
2.977 Å(63)
2.913 Å(42)
1.908 Å(35)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47b : [Sulfates and sulfites]
47f : [Uranyl (U⁶⁺) minerals]
Stage 10b: Anthropogenic minerals<10 Ka
55 : Anthropogenic mine minerals

Type Occurrence of OttohahniteHide

Type Locality:
ⓘ Blue Lizard Mine, Red Canyon Mining District, San Juan County, Utah, USA
General Appearance of Type Material:
Equant crystals up to ∼0.1 mm in maximum dimension
Place of Conservation of Type Material:
Mineralogical collections of The Natural History Museum of Los Angeles County, USA (catalogue numbers 65610, 65611, 65614 and 65617), and the Fersman Mineralogical Museum of the Russsian Academy of Sciences,Russia,registration number 4782/1
Associated Minerals at Type Locality:
TamarugitePlášilitePéligotiteKonyaiteKlaprothite
HexahydriteGypsumEpsomiteBobcookiteBluelizardite
Blödite
Reference:
Kampf, A.R., Plášil, J., Kasatkin, A.V., Marty, J., Čejka, J. (2017) Klaprothite, péligotite and ottohahnite, three new sodium uranyl sulfate minerals with bidentate UO7-SO4 linkages from the Blue Lizard mine, San Juan County, Utah, USA. Mineralogical Magazine: 81(4): 753-779.

Synonyms of OttohahniteHide

Related Minerals - Strunz-mindat GroupingHide

7.EC.AdolfpateraiteK(UO2)(SO4)(OH)(H2O)Mon. 2/m : P21/b
7.EC.Beshtauite(NH4)2(UO2)(SO4)2 · 2H2OMon. 2/m : P21/b
7.EC.SeaborgiteLiK2Na6(UO2)(SO4)5(SO3OH)(H2O)Tric. 1 : P1
7.EC.Nitscheite(NH4)2[(UO2)2(SO4)3(H2O)2] · 3H2OMon. 2/m
7.EC.OldsiteK2Fe2+[(UO2)(SO4)2]2(H2O)8Orth. mm2 : Pmn21
7.EC.Libbyite(NH4)2(Na2◻)[(UO2)2(SO4)3(H2O)]2 · 7H2OTet. 4 2 2 : P41 21 2
7.EC.05CobaltzippeiteCo(UO2)2(SO4)O2 · 3.5H2OMon. 2/m : B2/m
7.EC.05MagnesiozippeiteMg(UO2)2(SO4)O2 · 3.5H2OMon. 2/m : B2/m
7.EC.05NickelzippeiteNi2(UO2)6(SO4)3(OH)10 · 16H2O Mon.
7.EC.05NatrozippeiteNa5(UO2)8(SO4)4O5(OH)3 · 12H2OMon. 2/m : P21/m
7.EC.05ZinczippeiteZn(UO2)2(SO4)O2 · 3.5H2OMon. 2/m : B2/m
7.EC.05ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2OMon. 2 : B2
7.EC.05PlavnoiteK0.8Mn0.6[(UO2)2O2(SO4)] · 3.5H2OMon. 2/m : B2/m
7.EC.05Redcanyonite(NH4)2Mn[(UO2)4O4(SO4)2](H2O)4Mon. 2/m : B2/m
7.EC.05Ammoniozippeite(NH4)2[(UO2)2(SO4)O2] · H2OOrth. mmm (2/m 2/m 2/m)
7.EC.10RabejaciteCa(UO2)4(SO4)2(OH)6 · 6H2OTric. 1 : P1
7.EC.10SvornostiteK2Mg[(UO2)(SO4)2]2 · 8H2OOrth. mm2 : Pmn21
7.EC.15MarécottiteMg3(UO2)8(SO4)4O6(OH)2 · 28H2OTric. 1 : P1
7.EC.15Sejkoraite-(Y)Y2(UO2)8(SO4)4O6(OH)2 · 26H2OTric. 1 : P1
7.EC.20PseudojohanniteCu3(OH)2[(UO2)4(SO4)2] · 12H2OTric. 1 : P1
7.EC.40BluelizarditeNa7(UO2)(SO4)4Cl(H2O)2Mon. 2/m : B2/b
7.EC.45MeisseriteNa5(UO2)(SO4)3(SO3OH)(H2O)Tric. 1 : P1
7.EC.45FermiiteNa4(UO2)(SO4)3 · 3H2OOrth. mm2 : Pmn21
7.EC.45OppenheimeriteNa2(UO2)(SO4)2 · 3H2OTric. 1 : P1
7.EC.50PlášiliteNa(UO2)(SO4)(OH) · 2H2OMon. 2/m : P21/b
7.EC.50FeynmaniteNa(UO2)(SO4)(OH) · 3.5H2OMon.
7.EC.55GeschieberiteK2(UO2)(SO4)2 · 2H2OOrth. mm2 : Pna21
7.EC.65PéligotiteNa6(UO2)(SO4)4 · 4H2OTric. 1 : P1
7.EC.70KlaprothiteNa6(UO2)(SO4)4 · 4H2OMon. 2/m : P21/b
7.EC.75Lussierite Na10[(UO2)(SO4)4](SO4)2 · 3(H2O)Mon. m : Bb
7.EC.80NavrotskyiteK2Na10(UO2)3(SO4)9 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbcm
7.EC.85Pseudomeisserite-(NH4)(NH4)2Na4[(UO2)2(SO4)5] · 4H2OMon. 2/m : P21/b
7.EC.90WetherilliteNa2Mg(UO2)2(SO4)4 · 18H2OMon. 2/m : P21/b

Fluorescence of OttohahniteHide

In UV light:
bright bluish-green

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 OttohahniteHide

References for OttohahniteHide

Reference List:
Kampf, A.R., Plášil, J., Kasatkin, A.V., Marty, J., Čejka, J. (2016) Ottohahnite, IMA2015-098. CNMNC Newsletter No. 29, February 2016, 204. Mineralogical Magazine: 80: 199–205.
Kampf, Anthony R., Plášil, Jakub, Kasatkin, Anatoly V., Marty, Joe, Čejka, Jiří (2017) Klaprothite, péligotite and ottohahnite, three new minerals with bidentate UO7–SO4 linkages from the Blue Lizard mine, San Juan County, Utah, USA. Mineralogical Magazine, 81 (4) 753-779 doi:10.1180/minmag.2016.080.120
Belakovskiy, D.I., Cámara, F., Gagné, O.C. (2017) New Mineral Names. American Mineralogist: 102: 2341-2347.
Kampf, Anthony R., Plášil, Jakub, Kasatkin, Anatoly V., Marty, Joe, Čejka, Jiří (2017) Klaprothite, péligotite and ottohahnite, three new minerals with bidentate UO7–SO4 linkages from the Blue Lizard mine, San Juan County, Utah, USA. Mineralogical Magazine, 81 (4) 753-779 doi:10.1180/minmag.2016.080.120
(2023) Ottohahnite. Handbook of Mineralogy. Mineralogical Society of America

Localities for OttohahniteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
USA (TL)
 
  • Utah
    • San Juan County
      • Red Canyon Mining District
Kampf, Anthony R., Plášil, Jakub, Kasatkin, Anatoly V., Marty, Joe, Čejka, Jiří (2017) Klaprothite, péligotite and ottohahnite, three new minerals with bidentate UO7–SO4 linkages from the Blue Lizard mine, San Juan County, Utah, USA. Mineralogical Magazine, 81 (4) 753-779 doi:10.1180/minmag.2016.080.120
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