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Zippeite

Big Photo

Krunkelbach Valley Uranium deposit, Menzenschwand, Black Forest, Baden-Württemberg, Germany
© Stephan Wolfsried

Show Zippeite Photos (17)
Formula:
K
 
4
(UO
 
2
)
 
6
[(OH)
 
10
|(SO
 
4
)
 
3
] · 4H
 
2
O
System:OrthorhombicColour:Golden yellow, light ...
Hardness:2
Name:After Franz X.M. Zippe (1791-1863), Austrian mineralogist.


Zippeite Group

Classification of Zippeite

IMA status:Approved
Strunz 8th edition ID:6/D.20-40
Nickel-Strunz 10th (pending) edition ID:7.EC.05

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
E : Uranyl sulfates
C : With medium-sized and large cations
Dana 8th edition ID:31.10.4.1

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
10 : Miscellaneous
Hey's CIM Ref.:25.8.11

25 : Sulphates
8 : Sulphates of Sb, V, Cr and U
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Type Occurrence of Zippeite

Type Locality:Elias Mine, Jáchymov (St Joachimsthal), Ostrov, Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic
Year of Discovery:1845
Associated Minerals at type locality:
UranopiliteUraniniteLimoniteGypsum

Physical Properties of Zippeite

Lustre:Silky, Dull
Diaphaneity (Transparency):Translucent
Comment:Aggregates dull to silky.
Colour:Golden yellow, light yellow, orange-yellow
Streak:White, yellow
Hardness (Mohs):2
Cleavage:Perfect
On {010} probable, perfect.

Crystallography of Zippeite

Crystal System:Orthorhombic
Morphology:Crystals flattened {010}. Commonly spindle- or lens-shaped; rhomboidal orm lath-like at times. Occurs as delicate crusts, reniform or spheroidal aggregates comprised of microscopic crystals; pulverulent to earthy.

Optical Data of Zippeite

Type:Biaxial (-)
RI values: nα = 1.550 - 1.655 nβ = 1.717 nγ = 1.765
Maximum Birefringence:δ = 0.215

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:strong
Pleochroism:Visible
Comments:X = Nearly colourless
Y = Light yellow to orange-yellow
Z = Deep yellow to orange-yellow

Chemical Properties of Zippeite

Formula:
K
 
4
(UO
 
2
)
 
6
[(OH)
 
10
|(SO
 
4
)
 
3
] · 4H
 
2
O
Essential elements:H, Na, O, S, U
All elements listed in formula:H, K, O, S, U

Relationship of Zippeite to other Species

Member of Group:
Zippeite Group:
Related Minerals - Nickel-Strunz Grouping):

- +
7.EC.05Cobaltzippeite
Co
 
2
(UO
 
2
)
 
6
(SO
 
4
)
 
3
(OH)
 
10
·16H
 
2
O
7.EC.05Magnesiozippeite
Mg(UO
 
2
)
 
2
(SO
 
4
)(OH)
 
4
·1.5H
 
2
O
7.EC.05Nickelzippeite
Ni
 
2
(UO
 
2
)
 
6
(SO
 
4
)
 
3
(OH)
 
10
·16H
 
2
O
7.EC.05Natrozippeite
Na
 
4
(UO
 
2
)
 
6
[(OH)
 
10
|(SO
 
4
)
 
3
] · 4H
 
2
O
7.EC.05Zinczippeite
Zn
 
2
(UO
 
2
)
 
6
(SO
 
4
)
 
3
(OH)
 
10
·16H
 
2
O
7.EC.10Rabejacite
Ca(UO
 
2
)
 
4
(SO
 
4
)
 
2
(OH)
 
6
 · 6H
 
2
O
7.EC.15Marécottite
(H
 
3
O)
 
8
Mg
 
3
(UO
 
2
)
 
4
[O
 
3
|OH|(SO
 
4
)
 
2
]
 
2
 · 10H
 
2
O
7.EC.15IMA2009-008
Y
 
2
[(UO
 
2
)
 
8
O
 
6
(SO
 
4
)
 
4
(OH)
 
2
]·26H
 
2
O
7.EC.20Pseudojohannite
Cu
 
6.5
(UO
 
2
)
 
8
[O
 
8
|(OH)
 
5
|(SO
 
4
)
 
4
] · 25H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
25.8.1Klebelsbergite
Sb
 
4
[O
 
4
|(OH)
 
2
|SO
 
4
]
25.8.2Coquandite
Sb
 
6
[O
 
8
|SO
 
4
] · H
 
2
O
25.8.3Peretaite
Ca(SbO)
 
4
[(OH)|SO
 
4
]
 
2
 · 2H
 
2
O
25.8.4Cannonite
Bi
 
2
[O|(OH)
 
2
|SO
 
4
]
25.8.5Minasragrite
(V
4+
 
O)[SO
 
4
] · 5H
 
2
O
25.8.6Stanleyite
(V
4+
 
O)[SO
 
4
] · 6H
 
2
O
25.8.7Redingtonite
(Fe
2+
 
,Mg,Ni)(Cr,Al)
 
2
(SO
 
4
)
 
4
·22H
 
2
O
25.8.8Meta-uranopilite
(UO
 
2
)
 
6
[(OH)
 
10
|SO
 
4
] · 5H
 
2
O
25.8.9Uranopilite
(UO
 
2
)
 
6
[(OH)
 
10
|SO
 
4
] · 12H
 
2
O
25.8.10Natrozippeite
Na
 
4
(UO
 
2
)
 
6
[(OH)
 
10
|(SO
 
4
)
 
3
] · 4H
 
2
O
25.8.12Johannite
Cu(UO
 
2
)
 
2
[OH|SO
 
4
]
 
2
 · 8H
 
2
O
25.8.13Magnesiozippeite
Mg(UO
 
2
)
 
2
(SO
 
4
)(OH)
 
4
·1.5H
 
2
O
25.8.14Zinczippeite
Zn
 
2
(UO
 
2
)
 
6
(SO
 
4
)
 
3
(OH)
 
10
·16H
 
2
O

Other Names for Zippeite

Synonyms:
Dauberite
Other Languages:
German:Basisches schwefelsaures Uranoxyd
Dauberit
Uranblüte
Uranblüthe
Uranoker
Zippeit
Russian:Циппеит
Spanish:Dauberita
Zippeita
Varieties:
Cuprozippeite

Other Information

Fluorescence in UV light:Green (UV).
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 Zippeite

Reference List:John (1821) Chem. Unters.: 5 (as Basisches schwelelsaures Uranoxyd).

Zippe (1824) Verhl. Ges. Mus. Böhm.: 81 (as Uranblüthe).

Haidinger (1845): 510 (as Zippeit).

John (1845) Jb. Min.: 299 (as Basisches schwelelsaures Uranoxyd).

Vogl (1857) Min. Joachimsthal: 124 (as Uranoker).

Adam, M. (1869) Tableau minéralogique, Paris: 64 (as Dauberite).

Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 159.

Hess (1924) USGS Bull. 750D.

Nováček (1935) K. Česká Společnost nauk; Třída Matematicko-Přírodověděcká, Prague, Memoires (Société royale des sciences de Bohême, Prague), Cl. 2, no. 7.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 598-600.

Canadian Mineralogist (1976): 14: 429-436.

Vochten, R., Van Haverbeke, L., Van Springel, K., Blaton, N., and Peeters, O.M. (1995) The structure and physiochemical characteristics of synthetic zippeite. Canadian Mineralogist: 33: 1091-1101.

Journal of the Czech Geological Society, Prague (1997): 42(4): 57-58.

Canadian Mineralogist (2003): 41: 687-706.

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 Zippeite

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  • Raman and XRD data at RRUFF project
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  • Zippeite details from Handbook of Mineralogy (PDF)
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    Localities for Zippeite

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