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Clinokurchatovite

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About ClinokurchatoviteHide

Formula:
Ca(Mg,Fe2+,Mn2+)[B2O5]
Colour:
light grey
Crystal System:
Monoclinic
Name:
In allusion to its crystallographic structure, crystallizing in the monoclinic system, and after Igor Vasil’evich Kurchatov (1903–1960), Russian physicist, Institute of Nuclear Energy, Moscow, Russia, and its relationship to Kurchatovite.
This page provides mineralogical data about Clinokurchatovite.


Classification of ClinokurchatoviteHide

Approved
6.BA.10

6 : BORATES
B : Diborates
A : Neso-diborates with double triangles B2(O,OH)5; 2(2D); 2(2D) + OH, etc.
24.4.3.1

24 : ANHYDROUS BORATES
4 : A2[X2O5]
9.7.7

9 : Borates
7 : Borates of Mn

Physical Properties of ClinokurchatoviteHide

Colour:
light grey
Cleavage:
Perfect

Optical Data of ClinokurchatoviteHide

Type:
Biaxial (-)
RI values:
nα = 1.642 - 1.644 nβ = 1.674 - 1.675 nγ = 1.699 - 1.704
2V:
Measured: 82° to 88°, Calculated: 80° to 86°
Max Birefringence:
δ = 0.057 - 0.060
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
relatively strong

Chemical Properties of ClinokurchatoviteHide

Formula:
Ca(Mg,Fe2+,Mn2+)[B2O5]
IMA Formula:
CaMgB2O5

Crystallography of ClinokurchatoviteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 12.19 Å, b = 10.95 Å, c = 5.59 Å
β = 102°
Ratio:
a:b:c = 1.113 : 1 : 0.511
Unit Cell V:
729.85 ų (Calculated from Unit Cell)

Type Occurrence of ClinokurchatoviteHide

General Appearance of Type Material:
grains
Geological Setting of Type Material:
boron ore

Other Language Names for ClinokurchatoviteHide

Related Minerals - Nickel-Strunz GroupingHide

6.BA.05SuaniteMg2[B2O5]Mon.
6.BA.10KurchatoviteCa(Mg,Mn2+)[B2O5]Orth.
6.BA.15SussexiteMn2+BO2(OH)Orth. 2 2 2 : P21 21 2
6.BA.15SzaibélyiteMgBO2(OH)Mon.
6.BA.20Wiserite(Mn2+,Mg)14(B2O5)4(OH)8 · (Si,Mg)(O,OH)4ClTet.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

9.7.1Pinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Mon.
9.7.2Orthopinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Orth.
9.7.3Jimboite(Mn2+,Mg)3[BO3]2Orth.
9.7.4SussexiteMn2+BO2(OH)Orth. 2 2 2 : P21 21 2
9.7.5Wiserite(Mn2+,Mg)14(B2O5)4(OH)8 · (Si,Mg)(O,OH)4ClTet.
9.7.6KurchatoviteCa(Mg,Mn2+)[B2O5]Orth.
9.7.8Takéuchiite(Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2Orth.
9.7.9BlatteriteSb5+(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32Orth. mmm (2/m 2/m 2/m) : Pnnm
9.7.10TusioniteMn2+Sn4+[BO3]2Trig. 3 : R3

Other InformationHide

IR Spectrum:
Sayak-IV deposit material [cm-1]: 1389s, 1353s, 1325s, 1269, 1180s, 979w, 856, 785sh, 759, 711, 669, 625, 617, 507w, 406, 389
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 ClinokurchatoviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1984): 69: 810.
Soviet Physics – Doklady: 25: 228-230.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
Callegari, A., Mazzi, F., Tadini, C. (2003) Modular aspects of the crystal structures of kurchatovite and clinokurchatovite. European Journal of Mineralogy: 15: 277-282.
Chukanov, N.V. (2014): Infrared spectra of mineral species: Extended library. Springer (Springer Geochemistry/Mineralogy), vol. 1, Dordrecht, 1726 pp.

Internet Links for ClinokurchatoviteHide

Localities for ClinokurchatoviteHide

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
    • Balkhash
      • Sayak Cu ore field
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Russia
 
  • Sakha Republic (Yakutia)
    • Polar Yakutia
      • Dogdo River Basin
        • Tas-Khayakhtakh Range
http://maurice.strahlen.org/yakutia/yakutia.htm
Chukanov, N.V. (2014): Infrared spectra of mineral species: Extended library. Springer (Springer Geochemistry/Mineralogy), vol. 1, Dordrecht, 1726 pp.
 
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