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Chukhrovite-(Nd)

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Russian mineralogist and geochemist Fedor Vasil’evich Chukhrov.
Formula:
Ca3(Nd,Y)Al2(SO4)F13·12H2O
System:
Isometric
Colour:
Clear to white
Hardness:
3½ - 4
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)

Approved 2004
3.CG.10

3 : HALIDES
C : Complex halides
G : Aluminofluorides with CO3, SO4, PO4
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http://www.mindat.org/min-27474.html
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First Recorded Occurrence of Chukhrovite-(Nd)

Place of Conservation of First Recorded Material:
Fersman Mineralogical Museum

Physical Properties of Chukhrovite-(Nd)

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:
2.42(3) g/cm3 (Measured)    2.421 g/cm3 (Calculated)

Crystallography of Chukhrovite-(Nd)

Crystal System:
Isometric
Class (H-M):
m3 (2/m 3) - Diploidal
Space Group:
Fd3
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 Data:
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)
Max Birefringence:
δ = 1.443 - Isotropic minerals have no birefringence
Surface Relief:
Moderate

Chemical Properties of Chukhrovite-(Nd)

Formula:
Ca3(Nd,Y)Al2(SO4)F13·12H2O
Essential elements:
All elements listed in formula:

Relationship of Chukhrovite-(Nd) to other Species

Other Members of Group:
Chukhrovite-(Ca)Ca4.5Al2(SO4)F13·12H2O
Chukhrovite-(Ce)Ca3(Ce,Y)[F|SO4|(AlF6)2] · 10H2O
Chukhrovite-(Y)Ca3(Y,Ce)[F|SO4|(AlF6)2] · 10H2O
MeniayloviteCa4[F|SO4|SiF6|AlF6] · 12H2O
3.CG.05Stenonite(Sr,Ba,Na)2Al(CO3)F5
3.CG.10Chukhrovite-(Ce)Ca3(Ce,Y)[F|SO4|(AlF6)2] · 10H2O
3.CG.10Chukhrovite-(Y)Ca3(Y,Ce)[F|SO4|(AlF6)2] · 10H2O
3.CG.10MeniayloviteCa4[F|SO4|SiF6|AlF6] · 12H2O
3.CG.15CreediteCa3SO4Al2F8(OH)2 · 2H2O
3.CG.20BøggilditeNa2Sr2Al2PO4F9
3.CG.25ThermessaiteK2(AlF3)(SO4)

Other Names for Chukhrovite-(Nd)

Name in Other Languages:

Other Information

Health Risks:
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)

Localities for Chukhrovite-(Nd)

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Mineral and/or Locality  
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