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Zdenĕkite

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Cap Garonne Mine, Pradet, Var, Provence-Alpes-Côte d'Azur, France
© François Périnet

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Formula:
NaPbCu
 
5
[Cl|(AsO
 
4
)
 
4
] · 5H
 
2
O
System:MonoclinicColour:Intense blue
Lustre:VitreousHardness:1½ - 2
Name:For Dr. Johan Zdenek (1935-), mineralogist and Director of Scientific Affairs of the Bureau de Recherches Géologiques et Minières, France.


Lavendulan Group. The lead analogue of Lavendulan.

Classification of Zdenĕkite

IMA status:Approved 1992
Strunz 8th edition ID:7/D.25-25
Nickel-Strunz 10th (pending) edition ID:8.DG.05

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
G : With large and medium-sized cations, (OH, etc.):RO4< 0.5:1
Dana 8th edition ID:42.9.4.3

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
9 : (AB)7(XO4)4Zq·xH2O
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Type Occurrence of Zdenĕkite

Type Locality:Cap Garonne Mine, Pradet, Var, Provence-Alpes-Côte d'Azur, France

Physical Properties of Zdenĕkite

Lustre:Vitreous
Diaphaneity (Transparency):Translucent
Colour:Intense blue
Streak:Light blue
Hardness (Mohs):1½ - 2

Crystallography of Zdenĕkite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Cell Parameters:a = 10.023Å, b = 19.55Å, c = 10.023Å
β = 90.02°
Ratio:a:b:c = 0.513 : 1 : 0.513
Unit Cell Volume:V 1964 ų
Z:4
Morphology:Thin pseudotetragonal plates.
Twinning:Several twin laws appear to exist.
Comment:Pseudo-tetragonal metrics.
X-Ray Powder Diffraction:
d-spacingIntensity
9.78 (100)
6.998 (52)
4.888 (21)
4.460 (26)
4.393 (43)
3.973 (26)
3.114 (44)
3.113 (32)
3.083 (20)
2.973 (20)

Optical Data of Zdenĕkite

Type:Uniaxial (-)
RI values: nω = 1.770 nε = 1.710
Maximum Birefringence:δ = 0.060

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

Chemical Properties of Zdenĕkite

Formula:
NaPbCu
 
5
[Cl|(AsO
 
4
)
 
4
] · 5H
 
2
O
Essential elements:As, Cl, Cu, H, Na, O, Pb
All elements listed in formula:As, Cl, Cu, H, Na, O, Pb

Relationship of Zdenĕkite to other Species

Related Minerals - Nickel-Strunz Grouping):
8.DG.05Lavendulan
NaCaCu
 
5
[Cl|(AsO
 
4
)
 
4
] · 5H
 
2
O
8.DG.05Sampleite
NaCaCu
 
5
[Cl|(PO
 
4
)
 
4
] · 5H
 
2
O
8.DG.05Shubnikovite
Ca
 
2
Cu
 
8
[Cl|OH|(AsO
 
4
)
 
6
] · 7H
 
2
O
8.DG.05Lemanskiite
NaCaCu
 
5
[Cl|(AsO
 
4
)
 
4
] · 5H
 
2
O

Other Names for Zdenĕkite

Synonyms:
IMA1992-037
German names:
Zdenekit
Russian names:
Зденекит
Spanish names:
Zdenekita

Other Information

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 Zdenĕkite

Reference List:Chiappero, P.-J. & Sarp, H. (1995): Zdenekite, NaPbCu5(AsO4)4Cl.5H2O, a new mineral from the Cap Garonne mine, Var, France. European Journal of Mineralogy: 7: 553-557.

Zubkova, N.V., D. Yu. Pushcharovsky, H. Sarp, S. J. Teat, and E. J. MacLean (2003): Crystal structure of zdenekite NaPbCu5(AsO4)4Cl.5H2O, Crystallography Reports, 48, 939-943.

Mineralogical Record: 27: 395.

Ondruš, P., Veselovský, F, Sejkora, J., Skála, R., Pažout, R., Frýda, J., Gabašová, A., Vajdak, J. (2006): Lemanskiite, NaCaCu5(AsO4)4Cl•5H2O, a new mineral species from the Abundancia mine, Chile. Can. Mineral., 44, 523-531.

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    Localities for Zdenĕkite

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    (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.
    Australia
     
    • New South Wales
      • Yancowinna Co.
    		Birch BH Book
    France
     
    • Provence-Alpes-Côte d'Azur
      • Var
        • Pradet
    		Eur.J.Min.(1995) 7, 553-557.
    Greece
     
    • Attikí (Attica; Attika) Prefecture
      • Lavrion (Laurion; Laurium) District
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamareza; Kamariza)
            • Kamareza Mines
          • Lavrion (Laurion; Laurium)
            • Lavrion Mines
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