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Chukhrovite-(Nd)

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Formula:
Ca
 
3
(Nd,Y)Al
 
2
(SO
 
4
)F
 
13
·12H
 
2
O
System:IsometricColour:Clear to white
Hardness:3½ - 4
Member of:Chukhrovite Group
Name:
Named in 2005 by L. A. Pautov, G. K. Bekenova, V. Yu. Karpenko and A. A. Agakhanov in honor of Fedor Vassil’evich Chukhrov (1908-1988) and for the Nd dominance in the composition.


The Nd analogue of chukhrovite-(Ce).

Classification of Chukhrovite-(Nd)

IMA status:Approved 2004
Nickel-Strunz 10th (pending) edition ID:3.CG.10

3 : HALIDES
C : Complex halides
G : Aluminofluorides with CO3, SO4, PO4
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Type Occurrence of Chukhrovite-(Nd)

Type Locality:Kara-Oba W deposit, Betpakdala Desert (Bet-Pak-Dal Desert), Karagandy Province (Qaragandy Oblysy; Karaganda Oblast'), Kazakhstan
Place of Conservation of Type Material:Fersman Mineralogical Museum

Physical Properties of Chukhrovite-(Nd)

Lustre:Vitreous
Diaphaneity (Transparency):Transparent, Translucent
Colour:Clear to white
Streak:White
Hardness (Mohs):3½ - 4
Hardness (Vickers):VHN30=177 - 213 kg/mm2
Tenacity:Brittle
Cleavage:Poor/Indistinct
on {111}
Density (measured):2.42(3) g/cm3
Density (calculated):2.421 g/cm3

Crystallography of Chukhrovite-(Nd)

Crystal System:Isometric
Class (H-M):m3 (2/m 3) - Diploidal
Space Group:Fd3 {F2/d 3}
Cell Parameters:a = 16.759(3) Å
Unit Cell Volume:V 4,707.00 ų (Calculated from Unit Cell)
Z:8
Morphology:Poorly shaped combinations of cube and octahedron.
X-Ray Powder Diffraction:
d-spacingIntensity
9.7(10)
5.92(7)
4.20(4)
3.22(8)
2.555(7)
2.240(5)
2.180(6)
1.827(5)
Comments:From type description.

Optical Data of Chukhrovite-(Nd)

Type:Isotropic
RI values: nα = 1.443(2)
Maximum Birefringence:δ = 1.443 - Isotropic minerals have no birefringence
Surface Relief:Moderate

Chemical Properties of Chukhrovite-(Nd)

Formula:
Ca
 
3
(Nd,Y)Al
 
2
(SO
 
4
)F
 
13
·12H
 
2
O
Simplified for copy/paste:Ca3(Nd,Y)Al2(SO4)F13·12H2O
Essential elements:Al, Ca, F, H, Nd, O, S
All elements listed in formula:Al, Ca, F, H, Nd, O, S, Y

Relationship of Chukhrovite-(Nd) to other Species

Member of:Chukhrovite Group
Other Members of Group:

- +
Chukhrovite-(Ca)
Ca
 
4.5
Al
 
2
(SO
 
4
)F
 
13
·12H
 
2
O
Chukhrovite-(Ce)
Ca
 
3
(Ce,Y)[F|SO
 
4
|(AlF
 
6
)
 
2
] · 10H
 
2
O
Chukhrovite-(Y)
Ca
 
3
(Y,Ce)[F|SO
 
4
|(AlF
 
6
)
 
2
] · 10H
 
2
O
Meniaylovite
Ca
 
4
[F|SO
 
4
|SiF
 
6
|AlF
 
6
] · 12H
 
2
O
Related Minerals - Nickel-Strunz Grouping):

- +
3.CG.05Stenonite
(Sr,Ba,Na)
 
2
Al(CO
 
3
)F
 
5
3.CG.10Chukhrovite-(Ce)
Ca
 
3
(Ce,Y)[F|SO
 
4
|(AlF
 
6
)
 
2
] · 10H
 
2
O
3.CG.10Chukhrovite-(Y)
Ca
 
3
(Y,Ce)[F|SO
 
4
|(AlF
 
6
)
 
2
] · 10H
 
2
O
3.CG.10Meniaylovite
Ca
 
4
[F|SO
 
4
|SiF
 
6
|AlF
 
6
] · 12H
 
2
O
3.CG.15Creedite
Ca
 
3
SO
 
4
Al
 
2
F
 
8
(OH)
 
2
· 2H
 
2
O
3.CG.20Bøggildite
Na
 
2
Sr
 
2
Al
 
2
PO
 
4
F
 
9
3.CG.25Thermessaite
K
 
2
(AlF
 
3
)(SO
 
4
)

Other Names for Chukhrovite-(Nd)

Synonyms:
IMA2004-023
Other Languages:
German:Chukhrovit-(Nd)
Russian:Чухровит-(Nd)

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 Chukhrovite-(Nd)

Reference List:

- +
Pautov, L. A., Bekenova, G. K., Karpenko, V. Yu. and Agakhanov, A. A. (2005): Chukhrovite-(Nd), Ca3(Nd,Y)Al2(SO4)F13•12H2O, a new mineral. New Data on Minerals 40, 5-10.

Internet Links for Chukhrovite-(Nd)

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  • Localities for Chukhrovite-(Nd)

    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.
    Kazakhstan
     
    • Karagandy Province (Qaragandy Oblysy; Karaganda Oblast')
      • Betpakdala Desert (Bet-Pak-Dal Desert)
    Pautov, L. A., Bekenova, G. K., Karpenko, V. Yu. and Agakhanov, A. A. (2005): Chukhrovite-(Nd), Ca3(Nd,Y)Al2(SO4)F13•12H2O, a new mineral. New Data on Minerals 40, 5-10.
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