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Chukhrovite-(Nd)

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About Chukhrovite-(Nd)Hide

08231570014948199477113.jpg
Russian mineralogist and geochemist Fedor Vasil’evich Chukhrov.
Formula:
Ca3(Nd,Y)Al2(SO4)F13·12H2O
Colour:
Clear to white
Lustre:
Vitreous
Hardness:
3½ - 4
Specific Gravity:
2.42
Crystal System:
Isometric
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)Hide

Approved
Approval Year:
2004
3.CG.10

3 : HALIDES
C : Complex halides
G : Aluminofluorides with CO3, SO4, PO4

Physical Properties of Chukhrovite-(Nd)Hide

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

Optical Data of Chukhrovite-(Nd)Hide

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

Chemical Properties of Chukhrovite-(Nd)Hide

Formula:
Ca3(Nd,Y)Al2(SO4)F13·12H2O
IMA Formula:
Ca3NdAl2(SO4)F13 · 12H2O

Crystallography of Chukhrovite-(Nd)Hide

Crystal System:
Isometric
Class (H-M):
m3 (2/m 3) - Diploidal
Space Group:
Fd3
Cell Parameters:
a = 16.759(3) Å
Unit Cell V:
4,707.00 ų (Calculated from Unit Cell)
Z:
8
Morphology:
Poorly shaped combinations of cube and octahedron.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.7Å(10)
5.92Å(7)
4.20Å(4)
3.22Å(8)
2.555Å(7)
2.240Å(5)
2.180Å(6)
1.827Å(5)
Comments:
From type description.

Type Occurrence of Chukhrovite-(Nd)Hide

Synonyms of Chukhrovite-(Nd)Hide

Other Language Names for Chukhrovite-(Nd)Hide

Relationship of Chukhrovite-(Nd) to other SpeciesHide

Other Members of this group:
Chukhrovite-(Ca)Ca4.5Al2(SO4)F13·12H2OIso. m3 (2/m 3) : Fd3
Chukhrovite-(Ce)Ca3(Ce,Y)(AlF6)2(SO4)F · 10H2OIso.
Chukhrovite-(Y)Ca3(Y,Ce)(AlF6)2(SO4)F · 10H2OIso.
MeniayloviteCa4[(SO4)(SiF6)(AlF6)]F · 12H2OIso. m3 (2/m 3) : Fd3

Related Minerals - Nickel-Strunz GroupingHide

3.CG.3.CG.Chukhrovite-(Ca)Ca4.5Al2(SO4)F13·12H2OIso. m3 (2/m 3) : Fd3
3.CG.05Stenonite(Sr,Ba,Na)2Al(CO3)F5Mon. 2/m
3.CG.10Chukhrovite-(Ce)Ca3(Ce,Y)(AlF6)2(SO4)F · 10H2OIso.
3.CG.10Chukhrovite-(Y)Ca3(Y,Ce)(AlF6)2(SO4)F · 10H2OIso.
3.CG.10MeniayloviteCa4[(SO4)(SiF6)(AlF6)]F · 12H2OIso. m3 (2/m 3) : Fd3
3.CG.15CreediteCa3SO4Al2F8(OH)2 · 2H2OMon. 2/m : B2/b
3.CG.20BøggilditeNa2Sr2Al2PO4F9Mon.
3.CG.25ThermessaiteK2AlF3(SO4)Orth. mmm (2/m 2/m 2/m) : Pbcn

Other InformationHide

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)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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)Hide

Localities for Chukhrovite-(Nd)Hide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Kazakhstan (TL)
 
  • Karaganda Region
    • Karazhal
      • 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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