Mineralogy Database

Smirnite Mineral Data

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General Smirnite Information

Help on Chemical Formula: Chemical Formula: Bi2Te++++O5
Help on Composition: Composition: Molecular Weight = 625.56 gm
   Bismuth    66.81 %  Bi   74.49 % Bi2O3
   Tellurium  20.40 %  Te   25.51 % TeO2
   Oxygen     12.79 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Bi2TeO5
Help on Environment: Environment: Secondary mineral in a tellurium-bearing sulfide deposit.
Help on IMA Status: IMA Status: Approved IMA 1984
Help on Locality: Locality: Zod deposit, Armenia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Vladimir Ivanovich Smirnov (1910-1988), Russian economic geologist and department chairman, University of Moscow.
Help on Name Pronunciation: Name Pronunciation: Smirnite Say SMIRNITE
Help on Synonym: Synonym: ICSD 36446
  PDF 38-420
 

Smirnite Image

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  Smirnite   Tsumoite

Comments: Grayish to olive-green crusts of smirnite over quartz and metallic-grey tsumoite. Smirnite composition is (Bi1.98Pb.02)2.00Te1.00O4.99.
Location: Shilovo-Isetskii mine, Ekaterinburg (Sverdlovsk), Ekaterinburgskaya (Sverdlovskaya) Oblast', Middle Urals, Urals Region, Russia. Ex Fedor V. Chukhrov specimen collected before WWII. Scale: Picture Size 12x10 mm.
© Pavel M. Kartashov

Smirnite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =2.9833:1:2.1003
Help on Cell Dimensions: Cell Dimensions: a = 16.447, b = 5.513, c = 11.579, Z = 8; V = 1,049.89 Den(Calc)= 7.91
Help on Crystal System: Crystal System: Orthorhombic - Pyramidal H-M Symbol (mm2) Space Group: Cm2a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.226(1), 2.89(0.6), 1.727(0.3),1.992(0.3), 1.996(0.3), 1.668(0.2), 2.74(0.2), 2.75(0.2),
 

Physical Properties of Smirnite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Colorless, Light gray, Light yellow.
Help on Density: Density: 7.78
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 3.5-4 - Copper Penny-Fluorite
Help on Luster: Luster: Adamantine
Help on Streak: Streak: white
 

Optical Properties of Smirnite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.081 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.063 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1757,KPDmeas= 0.1787,KC= 0.1652
Ncalc = 2.29 - 2.31
Help on Optical Data: Optical Data: Biaxial (+), a=2.35, b=2.36, g=2.46, bire=0.1100, 2V(Calc)=38, 2V(Meas)=35-40.
Help on RL Anisotrophism: RL Anisotrophism: Strong.
Help on RL Color: RL Color: Pale gray, darkens on exposure to sunlight.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Smirnite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   20.70   19.10 
   
 420 nm   20.50   18.80 
 440 nm   20.00   18.10 
 460 nm   19.70   17.80 
 480 nm   19.40   17.50 
 500 nm   19.30   17.50 
 520 nm   19.30   17.40 
 540 nm   19.20   17.40 
 560 nm   19.10   17.30 
 580 nm   19.00   17.20 
 600 nm   18.80   17.00 
 620 nm   18.70   16.80 
 640 nm   18.50   16.70 
 660 nm   18.30   16.50 
 680 nm   18.20   16.30 
 700 nm   18.00   16.30 
Calculated Relative Intensity Colors of Smirnite in Air
Relative
Intensity		    0%   60% 100% 120% 180% 240% 300% 360% 420% 480% 520%
R1                      
R2                      
 

Calculated Properties of Smirnite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.52 gm/cc
note: Specific Gravity of Smirnite =7.91 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PESmirnite =1,379.41 barns/electron
U=PESmirnite x rElectron Density=9,000.21 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Smirnite is Not Radioactive
 

Smirnite Classification
Help on Dana Class: Dana Class: 34.01.08.01 (34)Selenites - Tellurites - Sulfites
  (34.01)as A++ XO3
  (34.01.08)Dana Group
 
34.01.08.01 Smirnite Bi2TeO5 Cm2a mm2
Help on Strunz Class: Strunz Class: 04.JK.40 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.J - Arsenites, Antimonites, Bismuthites, Sulfites,
  04.JK -Tellurites without additional anions, without H2O
 
04.JK.40 Smirnite Bi2TeO5 Cm2a mm2
 

Other Smirnite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic5)
Help on See Also: See Also: Links to other databases for Smirnite :
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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Smirnite

Bi2Te++++O5
Dana No: 34.01.08.01 Strunz No: 04.JK.40
Locality:

 

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