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Tugarinovite Mineral Data
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General Tugarinovite Information
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 Chemical Formula: |
MoO2 |
| Composition: |
Molecular Weight = 127.94 gm |
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Molybdenum 74.99 % Mo 100.00 % MoO2 |
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Oxygen 25.01 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
MoO2 |
| Environment: |
Formed as a primary mineral, by metasomatism in a reducing environment deficient in sulfur. |
| IMA Status: |
Approved IMA 1980 |
| Locality: |
Kudraivy Volcano, Kurile Islands, Eastern Siberia, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Aleksei Ivanovich Tugarinov (1947-), geochemist, Vernadskii Institute, Moscow, Russia. |
| Name Pronunciation: |
Tugarinovite + Pronunciation  |
| Synonym: |
ICSD 80830 |
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PDF 32-671 |
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Tugarinovite Image |
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Images:
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Tugarinovite
Comments: Black shining short-prismatic crystals of tugarinovite on whitish anhydrite with minor blue ilsemannite.
Location: Kudriavy (Kudryavyi) volcano, Iturup Island, Kuril Islands, Sakhalinskaya Oblast', Far-Eastern Region, Russia.
Scale: FOV is 2x1 mm.
© Pavel M. Kartashov |
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Tugarinovite Crystallography
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| Axial Ratios: |
a:b:c =1.1597:1:1.1431 |
| Cell Dimensions: |
a = 5.59, b = 4.82, c = 5.51, Z = 4; beta = 119.533° V = 129.17 Den(Calc)= 6.58 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/n |
| X Ray Diffraction: |
By Intensity(I/Io): 3.29(1), 1.703(0.8), 2.412(0.8), |
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Physical Properties of Tugarinovite
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| Color: |
Violet brown. |
| Diaphaneity: |
Semitransparent |
| Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
| Habit: |
Tabular - Form dimensions are thin in one direction. |
| Habit: |
Twinning Common - Crystals are usually twinned. |
| Hardness: |
4.6 |
| Luster: |
Resinous - Greasy |
| Streak: |
greenish gray |
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Optical Properties of Tugarinovite
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| Optical Data: |
Biaxial (?) |
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| RL Anisotrophism: |
Light gray to dark pink; pale yellow to bluish olive-brown. |
| RL Bireflectance: |
Observed. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Tugarinovite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 440 nm |
16.80 |
27.50 |
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| 460 nm |
15.50 |
24.90 |
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| 480 nm |
14.90 |
23.10 |
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| 500 nm |
14.60 |
21.70 |
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| 520 nm |
14.50 |
20.90 |
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| 540 nm |
14.70 |
20.30 |
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| 560 nm |
16.20 |
19.90 |
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| 580 nm |
19.70 |
18.70 |
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| 600 nm |
21.30 |
19.60 |
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| 620 nm |
24.60 |
19.60 |
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| 640 nm |
27.60 |
19.90 |
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| 660 nm |
30.70 |
19.60 |
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| 680 nm |
33.90 |
21.70 |
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| 700 nm |
37.20 |
23.30 |
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Calculated Relative Intensity Colors of Tugarinovite in Air
Relative
Intensity |
0% |
60% |
100% |
120% |
180% |
240% |
300% |
360% |
420% |
480% |
540% |
570% |
| R1 |
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| R2 |
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Calculated Properties of Tugarinovite
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| Electron Density: |
Bulk Density (Electron Density)=5.97 gm/cc
note: Specific Gravity of Tugarinovite =6.58 gm/cc.
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| Fermion Index: |
Fermion Index = 0.19
Boson Index = 0.81 |
| Photoelectric: |
PETugarinovite = 126.44 barns/electron
U=PETugarinovite x rElectron Density= 754.33 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tugarinovite is Not Radioactive |
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Tugarinovite Classification
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| Dana Class: |
04.04.15.01 (04)Simple Oxides |
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(04.04)with a cation charge of 4+ (A++++ O2) |
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(04.04.15)Dana Group |
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04.04.15.01 Tugarinovite MoO2 P 21/n 2/m |
| Strunz Class: |
04.DB.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.D - Metal:Oxygen = 1:2 and similar |
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04.DB -With medium-sized cations; chains of edge-sharing octahedra |
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04.DB.05 Argutite GeO2 P 4/mnm 4/m 2/m 2/m |
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04.DB.05 Cassiterite SnO2 P 4/mnm 4/m 2/m 2/m |
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04.DB.05 Rutile TiO2 P 4/mnm 4/m 2/m 2/m |
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04.DB.05 Pyrolusite MnO2 P 4/mnm 4/m 2/m 2/m |
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04.DB.05 Plattnerite PbO2 P 4/mnm 4/m 2/m 2/m |
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04.DB.05 Varlamoffite* (Sn,Fe)(O,OH)2 P 41/mnm 4/m 2/m 2/m |
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04.DB.05 Squawcreekite? (Fe,Sb,W)O4•(H2O) P 4/mnm 4/m 2/m 2/m |
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04.DB.05 Tugarinovite MoO2 P 21/n 2/m |
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04.DB.05 Tripuhyite FeSbO4 P 41/mnm 4/m 2/m 2/m |
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Other Tugarinovite 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 Tugarinovite :
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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Tugarinovite
MoO2
Dana No: 04.04.15.01 Strunz No: 04.DB.05
Locality:
Notes:
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