Mineralogy Database

Ikunolite Mineral Data

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General Ikunolite Information

Help on Chemical  Formula: Chemical Formula: Bi4(S,Se)3
Help on Composition: Composition: Molecular Weight = 967.29 gm
   Bismuth   86.42 %  Bi
   Selenium   6.12 %  Se
   Sulfur     7.46 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Bi4S2.25Se0.75
Help on Environment: Environment: In a quartz vein.
Help on IMA Status: IMA Status: Approved IMA 1959
Help on Locality: Locality: At the Ikuno and Akenobe mines, Hyogo Prefecture, and the Ashio mine, Tochigi Prefecture, Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For the Ikuno mine, Japan, in which it was first found.
Help on Name Pronunciation: Name Pronunciation: Ikunolite + Pronunciation Say IKUNOLITE
Help on Synonym: Synonym: ICSD 25795
  PDF 25-1175
 

Ikunolite Image

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  Ikunolite

Comments: B&W polished section showing kunolite( ik) in association with bismuth bi) and bismuthinite (bt). (AmMin, v47:1431).
Location: Bismuth-molybdenite pipes at Kingsgate in the New England district of New South Wales, Australia. Scale: 150 X.
© American Mineralogist

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  Ikunolite

Comments: Gray metallic grains of ikunolite on matrix.
Location: Also-Rozsa adit, Nagyborzsony, Borzsony Mts., Pest Co., Hungary. Scale: Specimen Size 10x5 mm.
© Sergey Vasiliev / Systematic Mineralogy

Ikunolite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:9.44337
Help on Cell Dimensions: Cell Dimensions: a = 4.15, c = 39.19, Z = 3; V = 584.52 Den(Calc)= 8.24
Help on Crystal System: Crystal System: Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: R 3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.022(1), 4.34(0.5), 2.205(0.3),
 

Physical Properties of Ikunolite

Help on Cleavage: Cleavage: {???} Perfect
Help on Color: Color: Lead gray.
Help on Density: Density: 7.8
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Metallic
Help on Streak: Streak: dark gray
 

Optical Properties of Ikunolite

Help on Optical Data: Optical Data: NCalc= 2.21 - from Gladstone-Dale relationship (KC = 0.1474) where Ncalc=Dcalc*KC+1
NCalc= 2.15 - from Gladstone-Dale relationship (KC = 0.1474) where Ncalc=Dmeas*KC+1
Help on RL Anisotrophism: RL Anisotrophism: Nearly isotropic in basal section, moderately anisotropic, pale gray to gray, in diagonal section.
Help on RL Color: RL Color: White with faint creamy tint.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Ikunolite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   46.60   48.80 
   
 420 nm   46.30   49.00 
 440 nm   46.00   49.20 
 460 nm   45.70   49.00 
 480 nm   45.50   48.70 
 500 nm   45.30   48.60 
 520 nm   45.20   48.60 
 540 nm   45.00   48.80 
 560 nm   45.00   48.90 
 580 nm   44.90   49.00 
 600 nm   44.90   49.00 
 620 nm   44.80   48.90 
 640 nm   44.60   48.70 
 660 nm   44.20   48.50 
 680 nm   43.80   48.10 
 700 nm   43.40   47.60 
Calculated Relative Intensity Colors of Ikunolite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 200%
R1                  
R2                  
 

Calculated Properties of Ikunolite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.70 gm/cc
note: Specific Gravity of Ikunolite =8.24 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0052131927
Boson Index = 0.9947868073
Help on Photoelectric: Photoelectric: PEIkunolite =1,715.06 barns/electron
U=PEIkunolite x rElectron Density=11498.07 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ikunolite is Not Radioactive
 

Ikunolite Classification

Help on  Dana Class: Dana Class: 02.06.02.03 (02)Sulfides - Including Selenides and Tellurides
  (02.06)where Am Bn Xp, with (m+n):p=4:3
  (02.06.02)Joseite Group (Trigonal: R-3m)
 
02.06.02.01 Joseite Bi4(S,Te)3 R 3m 3 2/m
 
02.06.02.02 Joseite-B Bi4(S,Te)3 R 3m 3 2/m
 
02.06.02.03 Ikunolite Bi4(S,Se)3 R 3m 3 2/m
 
02.06.02.04 Laitakarite Bi4(Se,S)3 R 3m 3 2/m
 
02.06.02.05 Pilsenite Bi4Te3 R 3m 3 2/m
 
02.06.02.06 Poubaite PbBi2Se2(Te,S)2 R 3m 3 2/m
 
02.06.02.07 Rucklidgeite (Bi,Pb)3Te4 R 3m 3 2/m
 
02.06.02.08 Babkinite! Pb2Bi2(S,Se)3 P 3,P 3m Trig
Help on  Strunz Class: Strunz Class: 02.DC.05d 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.D - Metal Sulfides, M:S = 3:4 and 2:3
  02.DC -Variable M:S
 
02.DC.05d Laitakarite Bi4(Se,S)3 R 3m 3 2/m
 
02.DC.05d Ikunolite Bi4(S,Se)3 R 3m 3 2/m
 
02.DC.05d Joseite Bi4(S,Te)3 R 3m 3 2/m
 
02.DC.05d Joseite-B Bi4(S,Te)3 R 3m 3 2/m
 
02.DC.05d Pilsenite Bi4Te3 R 3m 3 2/m
 

Other Ikunolite Information

Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Ikunolite :
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
15 - WWW-MINCRYST

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

Ikunolite

Bi4(S,Se)3
Dana No: 02.06.02.03 Strunz No: 02.DC.05d
Locality:

 

Notes:

 

 
   
 


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