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Belyankinite Mineral Data
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General Belyankinite Information
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 Chemical Formula: |
Ca1-2(Ti,Zr,Nb)5O12•9(H2O) (?) |
| Composition: |
Molecular Weight = 711.83 gm |
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Calcium 7.32 % Ca 10.24 % CaO |
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Zirconium 10.25 % Zr 13.85 % ZrO2 |
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Titanium 23.54 % Ti 39.28 % TiO2 |
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Niobium 9.14 % Nb 13.07 % Nb2O5 |
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Hydrogen 2.55 % H 22.78 % H2O |
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Oxygen 47.20 % O |
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______ ______ |
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100.00 % 99.21 % = TOTAL OXIDE |
| Empirical Formula: |
Ca1.3Ti3.5Zr0.8Nb0.7O12•9(H2O) |
| Environment: |
Replacing murmanite in nepheline syenite pegmatite in an alkalic massif. |
| IMA Status: |
Valid Species (Pre-IMA) 1950 |
| Locality: |
Mt. Karnasurt, Lovozero Massif, Kola Peninsula, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Dmitry Stepanovich Belyankin (1876-1953), prominent Russian mineralogist and petrographer. |
| Name Pronunciation: |
Belyankinite + Pronunciation  |
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Belyankinite Image |
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Images:
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Belyankinite Crystallography
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| Crystal System: |
Amorphous- No Crystals |
| X Ray Diffraction: |
By Intensity(I/Io): 1.69(1), 3.21(0.8), 2.48(0.6),1.361(0.5), 2.18(0.3), 1.633(0.2), |
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Physical Properties of Belyankinite
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| Cleavage: |
{???} Perfect |
| Color: |
Yellow, Brownish yellow. |
| Density: |
2.32 - 2.4, Average = 2.36 |
| Diaphaneity: |
Transparent to Opaque |
| Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
| Habit: |
Aggregates - Made of numerous individual crystals or clusters. |
| Habit: |
Platy - Sheet forms (e.g. micas). |
| Hardness: |
2-3 - Gypsum-Calcite |
| Luster: |
Vitreous - Greasy |
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Optical Properties of Belyankinite
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| Gladstone-Dale: |
CI meas= -0.02 (Excellent) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.3239,KC= 0.3176
Ncalc = 1.74 - 1.76 |
| Optical Data: |
Biaxial (-), a=1.74, b=1.772-1.78, g=1.775-1.78, bire=0.0350-0.0400, 2V(Calc)=0-32, 2V(Meas)=21-25. |
| Pleochroism (x): |
brown or dark brown. |
| Pleochroism (y): |
light brown or yellow brown. |
| Pleochroism (z): |
light brown or light brown. |
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Calculated Properties of Belyankinite
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| Electron Density: |
Bulk Density (Electron Density)=2.32 gm/cc
note: Specific Gravity of Belyankinite =2.36 gm/cc.
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| Fermion Index: |
Fermion Index = 0.04
Boson Index = 0.96 |
| Photoelectric: |
PEBelyankinite = 31.37 barns/electron
U=PEBelyankinite x rElectron Density= 72.75 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Belyankinite is Not Radioactive |
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Belyankinite Classification
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| Dana Class: |
08.07.08.01 (08)Multiple Oxides with Nb, Ta, and Ti |
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(08.07)Dana Type |
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(08.07.08)Belyankinite Group |
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08.07.08.01 Belyankinite Ca1-2(Ti,Zr,Nb)5O12•9(H2O)(?) None |
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08.07.08.02 Manganbelyankinite (Mn,Ca)(Ti,Nb)5O12•9(H2O) None |
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08.07.08.03 Gerasimovskite (Mn,Ca)(Nb,Ti)5O12•9(H2O)(?) None |
| Strunz Class: |
04.FM.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.F - Hydroxides (without V or U) |
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04.FM -Hydroxides with H2O � (OH); Unclassified |
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04.FM.25 Belyankinite Ca1-2(Ti,Zr,Nb)5O12•9(H2O)(?) None |
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04.FM.25 Gerasimovskite (Mn,Ca)(Nb,Ti)5O12•9(H2O)(?) None |
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04.FM.25 Manganbelyankinite (Mn,Ca)(Ti,Nb)5O12•9(H2O) None |
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Other Belyankinite Information
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| References: |
NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3) |
| See Also: |
Links to other databases for Belyankinite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info
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Belyankinite
Ca1-2(Ti,Zr,Nb)5O12•9(H2O) (?)
Dana No: 08.07.08.01 Strunz No: 04.FM.25
Locality:
Notes:
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