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Kazanskyite

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Formula:
BaNa3Ti2Nb(Si2O7)2O2(OH)2(H2O)4
Colour:
colorless to pale tan
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
2.930 (Calculated)
Crystal System:
Triclinic
Name:
In honour of Professor Vadim Ivanovich Kazansky (Вадим Иванович Казанский) (b. 1926, Tashkent, USSR), a prominent Russian ore geologist and an expert in Precambrian metallogeny.
This page provides mineralogical data about Kazanskyite.


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Classification of KazanskyiteHide

Approved
Approval Year:
2011

Physical Properties of KazanskyiteHide

Vitreous
Transparency:
Transparent
Colour:
colorless to pale tan
Streak:
white
Hardness:
Tenacity:
Flexible
Cleavage:
Perfect
{001}
Fracture:
Splintery
Density:
2.930 g/cm3 (Calculated)

Optical Data of KazanskyiteHide

Type:
Biaxial (+)
RI values:
nα = 1.695(2) nβ = 1.703(2) nγ = 1.733(2)
2V:
Measured: 64.8° (7), Calculated: 55.4°
Max Birefringence:
δ = 0.038
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
not discernible
Pleochroism:
Non-pleochroic

Chemical Properties of KazanskyiteHide

Formula:
BaNa3Ti2Nb(Si2O7)2O2(OH)2(H2O)4
IMA Formula:
Ba◻TiNbNa3Ti(Si2O7)2O2(OH)2(H2O)2

Crystallography of KazanskyiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 5.4260(9) Å, b = 7.135(1) Å, c = 25.514(4) Å
α = 98.172(4)°, β = 90.916(4)°, γ = 89.964(3)°
Ratio:
a:b:c = 0.76 : 1 : 3.576
Unit Cell V:
977.61 ų (Calculated from Unit Cell)
Z:
2
Twinning:
twinned

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.288(44)
3.938(70)
3.127(39)
2.955(32)
2.895(33)
2.813(100)
2.149(82)
2.128(44)

Type Occurrence of KazanskyiteHide

General Appearance of Type Material:
flexible and commonly bent flakes 215 mm thick and up to 330 mm across.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, catalogue number 4103/1
Geological Setting of Type Material:
apatite mine in alkaline massif. hydrothermal action on pegmatite.
Associated Minerals at Type Locality:

Synonyms of KazanskyiteHide

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 KazanskyiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Ca´mara, F., Sokolova, E. and Hawthorne, F.C. (2011): Kazanskyite, IMA 2011-007. CNMNC Newsletter No. 10, October 2011, page 2549
Cámara, F., Sokolova, E., & Hawthorne, F. C. (2012). Kazanskyite, Ba□ TiNbNa3Ti (Si2O7) 2O2 (OH) 2 (H2O) 4, a Group-III Ti-disilicate mineral from the Khibiny alkaline massif, Kola Peninsula, Russia: description and crystal structure. Mineralogical Magazine, 76(3), 473-492.

Internet Links for KazanskyiteHide

Localities for KazanskyiteHide

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.
Russia (TL)
 
  • Northern Region
    • Murmanskaya Oblast'
      • Khibiny Massif
        • Kukisvumchorr Mt
Ca´mara, F., Sokolova, E. and Hawthorne, F.C. (2011): Kazanskyite, IMA 2011-007. CNMNC Newsletter No. 10, October 2011, page 2549; Cámara, F., Sokolova, E., Abdu, Y. A., & Hawthorne, F. C. (2014). Saamite, Ba□ Tinbna3ti (Si2o7) 2o2 (Oh) 2 (H2o) 2, a Group-iii Ti-disilicate Mineral from the Khibiny Alkaline Massif, Kola Peninsula, Russia: Description and Crystal Structure. The Canadian Mineralogist, 52(4), 745-762.
Mineral and/or Locality  
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