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Znucalite

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

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Formula:
Zn
 
12
Ca(UO
 
2
)(CO
 
3
)
 
3
(OH)
 
22
 · 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
)(CO
 
3
)
 
3
(OH)
 
22
 · 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
(CO
 
3
)
 
6
F
 
2
 · 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
(CO
 
3
)
 
6
(OH)
 
4
 · 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
5.ED.50IMA2009-081
K
 
4
(UO
 
2
)(CO
 
3
)
 
3
Related Minerals - Hey's Index Grouping:

- +
11.11.1Stichtite
Mg
 
6
Cr
 
2
(CO
 
3
)(OH)
 
16
 · 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
CaU
5+
 
(UO
 
2
)
 
2
(CO
 
3
)O
 
4
(OH) · 7H
 
2
O
11.11.9Urancalcarite
Ca(UO
 
2
)
 
3
(CO
 
3
)(OH)
 
6
 · 3H
 
2
O
11.11.10Sharpite
Ca(UO
 
2
)
 
6
(CO
 
3
)
 
5
(OH)
 
4
 · 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
(CO
 
3
)
 
6
(OH)
 
4
 · 18H
 
2
O
11.11.15Kamotoite-(Y)
Y
 
2
(UO
 
2
)
 
4
(CO
 
3
)
 
3
O
 
4
 · 14H
 
2
O
11.11.16Shabaite-(Nd)
Ca(Nd,Sm,Y)
 
2
(UO
 
2
)(CO
 
3
)
 
4
(OH)
 
2
 · 6H
 
2
O
11.11.17Astrocyanite-(Ce)
Cu
 
2
(Ce,Nd,La)
 
2
(UO
 
2
)(CO
 
3
)
 
5
(OH)
 
2
 · 1.5H
 
2
O
11.11.18Bijvoetite-(Y)
(Y,Dy)
 
2
(UO
 
2
)
 
4
(CO
 
3
)
 
4
(OH)
 
6
 · 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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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Znucalite details from Handbook of Mineralogy (PDF)
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    • Localities for Znucalite

    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.
    Hide Locality List
    (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
    Plášil, J. et al.: Supergenní mineralizace z haldy šachty č. 16 Příbram - Háje. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2008, vol. 16, 1, 43-55.
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Jáchymov (St Joachimsthal) District
    		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.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 19th Jun 2011 20:33:17
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