Tugarinovite Mineral Data

General Tugarinovite Information

Chemical Formula:

MoO2

Composition:

Molecular Weight = 127.94 gm

Molybdenum 74.99 % Mo 100.00 % MoO₂

Oxygen 25.01 % O

______ ______

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

PDF 32-671

Tugarinovite Image

Images:

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

Tugarinovite Crystallography

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 - PrismaticH-M Symbol (2/m) Space Group: P 2₁/n

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.29(1), 1.703(0.8), 2.412(0.8),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
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Wyckoff R W G , Crystal Structures , 1 (1963) p.239-444, Second edition. Interscience Publishers, New York, New York

Physical Properties of Tugarinovite

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

Optical Properties of Tugarinovite

Optical Data:

Biaxial (?)

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	∑ R₁(λ)	∑ R₂(λ)
440 nm	16.80	27.50
460 nm	15.50	24.90
480 nm	14.90	23.10
500 nm	14.60	21.70
520 nm	14.50	20.90
540 nm	14.70	20.30
560 nm	16.20	19.90
580 nm	19.70	18.70
600 nm	21.30	19.60
620 nm	24.60	19.60
640 nm	27.60	19.90
660 nm	30.70	19.60
680 nm	33.90	21.70
700 nm	37.20	23.30

**Calculated Relative Intensity Colors of Tugarinovite in Air**
Relative Intensity	0%	60%	100%	120%	180%	240%	300%	360%	420%	480%	540%	570%
R₁
R₂

Calculated Properties of Tugarinovite

Electron Density:

Bulk Density (Electron Density)=5.97 gm/cc
note: Specific Gravity of Tugarinovite =6.58 gm/cc.

Fermion Index:

Fermion Index = 0.19
Boson Index = 0.81

Photoelectric:

PE_Tugarinovite= 126.44 barns/electron
U=PE_Tugarinovite x rElectron Density= 754.33 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tugarinovite is Not Radioactive

Tugarinovite Classification

Dana Class:

04.04.15.01 (04)Simple Oxides

(04.04)with a cation charge of 4+ (A++++ O2)

(04.04.15)Dana Group

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

04.D - Metal:Oxygen = 1:2 and similar

04.DB -With medium-sized cations; chains of edge-sharing octahedra

04.DB.05 Argutite GeO2 P 4/mnm 4/m 2/m 2/m

04.DB.05 Cassiterite SnO2 P 4/mnm 4/m 2/m 2/m

04.DB.05 Rutile TiO2 P 4/mnm 4/m 2/m 2/m

04.DB.05 Pyrolusite MnO2 P 4/mnm 4/m 2/m 2/m

04.DB.05 Plattnerite PbO2 P 4/mnm 4/m 2/m 2/m

04.DB.05 Varlamoffite* (Sn,Fe)(O,OH)2 P 4₁/mnm 4/m 2/m 2/m

04.DB.05 Squawcreekite? (Fe,Sb,W)O4•(H2O) P 4/mnm 4/m 2/m 2/m

04.DB.05 Tugarinovite MoO2 P 2₁/n 2/m

04.DB.05 Tripuhyite FeSbO4 P 4₁/mnm 4/m 2/m 2/m

Other Tugarinovite Information

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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Print or Cut-and-Paste your Tugarinovite Specimen Label here :

Tugarinovite

MoO2
Dana No: 04.04.15.01 Strunz No: 04.DB.05
Locality:

Notes: