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Kyzylkumite Mineral Data
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General Kyzylkumite Information
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 Chemical Formula: |
V+++2Ti3O9 |
| Composition: |
Molecular Weight = 389.52 gm |
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Titanium 36.88 % Ti 61.52 % TiO2 |
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Vanadium 26.16 % V 38.48 % V2O3 |
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Oxygen 36.97 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
V3+2Ti3O9 |
| Environment: |
Silliceous schists with chlorite, pyrite, and rutile. |
| IMA Status: |
Approved IMA 1981 |
| Locality: |
Kyzul-Kum, Uzbekistan. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Kyzylkumite + Pronunciation  |
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Kyzylkumite Image |
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Images:
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Kyzylkumite
Comments: A small crystal of kyzylkumite with a triangular face.
Location: Koscheka U Deposit, Auminzatau Mtns., Central Kyzylkum Region, Kyzylkum Desert, Uzbekistan.
Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag |
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Kyzylkumite Crystallography
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| Axial Ratios: |
a:b:c =7.3831:1:4.3665 |
| Cell Dimensions: |
a = 33.8, b = 4.578, c = 19.99, Z = 18; beta = 93.4° V = 3,087.74 Den(Calc)= 3.77 |
| Crystal System: |
Monoclinic Space Group: Unk |
| X Ray Diffraction: |
By Intensity(I/Io): 2.92(1), 3.7(0.8), 1.682(0.65), |
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Physical Properties of Kyzylkumite
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| Color: |
Black. |
| Density: |
3.75 |
| Diaphaneity: |
Opaque |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
| Hardness: |
6-6.5 - Orthoclase-Pyrite |
| Luster: |
Vitreous - Resinous |
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Optical Properties of Kyzylkumite
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| Optical Data: |
Biaxial (?) |
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NCalc= 2.32 - from Gladstone-Dale relationship (KC = 0.3491) where Ncalc=Dcalc*KC+1
NCalc= 2.31 - from Gladstone-Dale relationship (KC = 0.3491) where Ncalc=Dmeas*KC+1
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| RL Anisotrophism: |
Distinct. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Kyzylkumite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 440 nm |
14.70 |
15.80 |
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| 460 nm |
14.60 |
15.70 |
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| 480 nm |
14.50 |
15.70 |
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| 500 nm |
14.50 |
15.80 |
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| 520 nm |
14.60 |
15.80 |
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| 540 nm |
14.70 |
16.00 |
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| 560 nm |
14.80 |
16.20 |
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| 580 nm |
14.80 |
16.20 |
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| 600 nm |
15.00 |
16.30 |
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| 620 nm |
15.10 |
16.40 |
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| 640 nm |
15.20 |
16.50 |
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| 660 nm |
15.20 |
16.50 |
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Calculated Relative Intensity Colors of Kyzylkumite in Air
Relative
Intensity |
0% |
70% |
100% |
140% |
210% |
280% |
350% |
420% |
490% |
560% |
610% |
| R1 |
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| R2 |
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Calculated Properties of Kyzylkumite
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| Electron Density: |
Bulk Density (Electron Density)=3.56 gm/cc
note: Specific Gravity of Kyzylkumite =3.77 gm/cc.
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| Fermion Index: |
Fermion Index = 0.04
Boson Index = 0.96 |
| Photoelectric: |
PEKyzylkumite = 11.27 barns/electron
U=PEKyzylkumite x rElectron Density= 40.12 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kyzylkumite is Not Radioactive |
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Kyzylkumite Classification
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| Dana Class: |
08.04.01.03 (08)Multiple Oxides with Nb, Ta, and Ti |
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(08.04)with miscellaneous formulae |
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(08.04.01)Schreyerite Group |
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08.04.01.01 Schreyerite V2Ti3O9 C 2/c 2/m |
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08.04.01.02 Olkhonskite (Cr,V)2Ti3O9 Unk Mono |
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08.04.01.03 Kyzylkumite V2Ti3O9 Unk Mono |
| Strunz Class: |
04.CB.75 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.C - Metal:Oxygen = 2:3, 3:5, and Similar |
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04.CB -With medium-sized cations |
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04.CB.75 Kyzylkumite V2Ti3O9 Unk Mono |
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Other Kyzylkumite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic3) |
| See Also: |
Links to other databases for Kyzylkumite :
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 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
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Print or Cut-and-Paste your Kyzylkumite Specimen Label here :
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Kyzylkumite
V+++2Ti3O9
Dana No: 08.04.01.03 Strunz No: 04.CB.75
Locality:
Notes:
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