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Znucalite

Big Photo

St Christoph Mine, Bärenhecke, Glashütte, Erzgebirge, Saxony, Germany
© Thomas Witzke

Show Znucalite Photos (7)
Formula:
Zn
 
12
Ca(UO
 
2
)[(OH)
 
22
|(CO
 
3
)
 
3
] · 4H
 
2
O
System:OrthorhombicColour:White to light yellow
Name:The name is derived from its composition: Zinc (Zn), Uranium (U) and Calcium (Ca)
This page provides mineralogical data about Znucalite.

Classification of Znucalite

IMA status:Approved 1989
Strunz 8th edition ID:5/F.03-15
Nickel-Strunz 10th (pending) edition ID:5.ED.45

5 : CARBONATES (NITRATES)
E : Uranyl Carbonates
D : UO2:CO3 = 1:3
Dana 8th edition ID:16b.7.14.1

16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
7 : Miscellaneous
Hey's CIM Ref.:11.11.20

11 : Carbonates
11 : Carbonates of Cr and U
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Type Occurrence of Znucalite

Type Locality:Lill Mine, Black pits deposit, Březové Hory (Birkenberg), Příbram, Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic
Year of Discovery:1990

Physical Properties of Znucalite

Lustre:Silky
Diaphaneity (Transparency):Translucent
Colour:White to light yellow

Crystallography of Znucalite

Crystal System:Orthorhombic
Cell Parameters:a = 10.72Å, b = 25.16Å, c = 6.32Å
Ratio:a:b:c = 0.426 : 1 : 0.251
Unit Cell Volume:V 1,704.60 ų (Calculated from Unit Cell)

Optical Data of Znucalite

Type:Biaxial (-)
RI values: nα = 1.563 nβ = 1.621 nγ = 1.621
2V:Measured: 50° to 66°
Maximum Birefringence:δ = 0.058

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

Chemical Properties of Znucalite

Formula:
Zn
 
12
Ca(UO
 
2
)[(OH)
 
22
|(CO
 
3
)
 
3
] · 4H
 
2
O
Essential elements:C, Ca, H, O, U, Zn
All elements listed in formula:C, Ca, H, O, U, Zn

Relationship of Znucalite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
5.ED.05Bayleyite
Mg
 
2
(UO
 
2
)[CO
 
3
]
 
3
 · 18H
 
2
O
5.ED.10Swartzite
MgCa(UO
 
2
)[CO
 
3
]
 
3
 · 12H
 
2
O
5.ED.15Albrechtschraufite
Ca
 
4
Mg(UO
 
2
)
 
2
[F
 
2
|(CO
 
3
)
 
6
] · 17 H
 
2
O
5.ED.20Liebigite
Ca
 
2
(UO
 
2
)[CO
 
3
]
 
3
 · 11H
 
2
O
5.ED.25Rabbittite
Ca
 
3
Mg
 
3
(UO
 
2
)
 
2
[(OH)
 
4
|(CO
 
3
)
 
6
] · 18H
 
2
O
5.ED.30Andersonite
Na
 
2
Ca(UO
 
2
)[CO
 
3
]
 
3
 · 6H
 
2
O
5.ED.35Grimselite
K
 
3
Na(UO
 
2
)[CO
 
3
]
 
3
 · H
 
2
O
5.ED.40Widenmannite
Pb
 
2
(UO
 
2
)[CO
 
3
]
 
3
5.ED.50Čejkaite
Na
 
4
(UO
 
2
)(CO
 
3
)
 
3
Related Minerals - Hey's Index Grouping:

- +
11.11.1Stichtite
Mg
 
6
Cr
 
2
[(OH)
 
16
|CO
 
3
] · 4H
 
2
O
11.11.2Rutherfordine
(UO
 
2
)[CO
 
3
]
11.11.3Joliotite
(UO
 
2
)[CO
 
3
] · nH
 
2
O
11.11.4Grimselite
K
 
3
Na(UO
 
2
)[CO
 
3
]
 
3
 · H
 
2
O
11.11.5Bayleyite
Mg
 
2
(UO
 
2
)[CO
 
3
]
 
3
 · 18H
 
2
O
11.11.6Metazellerite
Ca(UO
 
2
)[CO
 
3
]
 
2
 · 3H
 
2
O
11.11.7Zellerite
Ca(UO
 
2
)[CO
 
3
]
 
2
 · 5H
 
2
O
11.11.8Wyartite
Ca[U
5+
 
(UO
 
2
)
 
2
(CO
 
3
)O
 
4
(OH)](H
 
2
O)
 
7
11.11.9Urancalcarite
Ca(UO
 
2
)
 
3
[(OH)
 
6
|CO
 
3
] · 3H
 
2
O
11.11.10Sharpite
Ca(UO
 
2
)
 
6
[(OH)
 
4
|(CO
 
3
)
 
5
] · 6H
 
2
O
11.11.11Voglite
Ca
 
2
Cu(UO
 
2
)[CO
 
3
]
 
4
 · 6H
 
2
O (?)
11.11.12Andersonite
Na
 
2
Ca(UO
 
2
)[CO
 
3
]
 
3
 · 6H
 
2
O
11.11.13Swartzite
MgCa(UO
 
2
)[CO
 
3
]
 
3
 · 12H
 
2
O
11.11.14Rabbittite
Ca
 
3
Mg
 
3
(UO
 
2
)
 
2
[(OH)
 
4
|(CO
 
3
)
 
6
] · 18H
 
2
O
11.11.15Kamotoite-(Y)
Y
 
2
(UO
 
2
)
 
4
[O
 
4
|(CO
 
3
)
 
3
] · 14H
 
2
O
11.11.16Shabaite-(Nd)
Ca(Nd,Sm,Y)
 
2
(UO
 
2
)[(OH)
 
2
|(CO
 
3
)
 
4
] · 6H
 
2
O
11.11.17Astrocyanite-(Ce)
Cu
 
2
(Ce,Nd,La)
 
2
(UO
 
2
)[(OH)
 
2
|(CO
 
3
)
 
5
] · 1.5H
 
2
O
11.11.18Bijvoetite-(Y)
(Y,Dy)
 
2
(UO
 
2
)
 
4
[(OH)
 
6
|(CO
 
3
)
 
4
] · 11H
 
2
O
11.11.19Widenmannite
Pb
 
2
(UO
 
2
)[CO
 
3
]
 
3

Other Names for Znucalite

Synonyms:
IMA1989-033
Other Languages:
German:Znucalit
Spanish:Znucalita

Other Information

Fluorescence in UV light:Yellow-green fluorescence (UV)
Special Storage/
Display Requirements from:
Sterling Mine,..., Sussex Co., New Jersey, USAProtect for radiation hazard.
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 Znucalite

Reference List:Neues Jahrbuch für Mineralogie, Monatshefte (1990): 393-400.

American Mineralogist (1994): 79: 1214.

New Minerals (1997), New Minerals 1990-1994.

Internet Links for Znucalite

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    Localities for Znucalite

    Hide Locality List
    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Příbram
          • Březové Hory (Birkenberg)
            • Black pits deposit
    		Neues Jahrb. Mineral., Monatsh. (1991), 393–400
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Ostrov
    		Lapis 2002(7/8), 63-65
    France
     
    • Languedoc-Roussillon
      • Hérault
        • Lodève
    		[MinRec 23:434]
    Germany
     
    • Saxony
      • Erzgebirge
        • Glashütte
          • Bärenhecke
    		Wittern: "Mineralfundorte in Deutschland", 2001
    USA
     
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Ogdensburg
            • Sterling Hill
    		Bostwick, R.C.: The Picking Table:32(2):4-6 (1991); Ondrush, P. & Veselovsky, F. (authors) confirmed analysis (personal comm. with C.S. Lemanski, Jr.); Dunn(1995):Pt4:626.
    Mineral and/or Locality
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