Mineralogy Database

Ilinskite Mineral Data

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General Ilinskite Information

Help on Chemical  Formula: Chemical Formula: NaCu5O2(SeO3)2Cl
Help on Composition: Composition: Molecular Weight = 662.09 gm
   Sodium     3.47 %  Na    4.68 % Na2O
   Copper    47.99 %  Cu   54.03 % Cu2O
   Selenium  23.85 %  Se   33.52 % SeO2
   Chlorine   5.35 %  Cl    5.35 % Cl
               -   %   Cl   -1.21 % -O=Cl2   
   Oxygen    19.33 %  O
            ______        ______ 
            100.00 %       96.38 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaCu5O2(SeO3)2Cl
Help on Environment: Environment: From fumarolic exhalations.
Help on IMA Status: IMA Status: Approved IMA 1996 (Dana # Added)
Help on Locality: Locality: On the South and North breaks of the Tolbachik Main Fracture eruption, Kamchatka, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For G. A. Ilinskiy (1927-1996) of St. Petersburg University.
Help on Name Pronunciation: Name Pronunciation: Ilinskite + Pronunciation Say ILINSKITE
Help on Synonym: Synonym: IMA1996-027

Ilinskite Image

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Comments: Dark green crystals of ilinskite on matrix.
Location: Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Ilinskite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5911:1:0.3627
Help on Cell Dimensions: Cell Dimensions: a = 10.482, b = 17.732, c = 6.432, Z = 4; V = 1,195.50 Den(Calc)= 3.68
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pbnm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.24(1), 8.84(0.6), 3.251(0.4),2.955(0.27), 2.626(0.25), 2.531(0.12), 9.01(0.1),

Physical Properties of Ilinskite

Help on Cleavage: Cleavage: {100} Perfect
Help on Color: Color: Emerald green.
Help on Density: Density: 4.08
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 1.5-2 - Talc-Gypsum
Help on Luster: Luster: Vitreous - Adamantine
Help on Streak: Streak: light green

Optical Properties of Ilinskite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.046 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.16 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2524,KPDmeas= 0.2277,KC= 0.2176
Ncalc = 1.8 - 1.89
Help on Optical Data: Optical Data: Biaxial (-), a=1.845, b=1.965-1.968, g=1.975, bire=0.1300, 2V(Calc)=24-30, 2V(Meas)=20. Dispersion dispersion not observed.

Calculated Properties of Ilinskite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.76 gm/cc
note: Specific Gravity of Ilinskite =4.08 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEIlinskite = 40.55 barns/electron
U=PEIlinskite x rElectron Density= 152.44 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ilinskite is Not Radioactive

Ilinskite Classification

Help on  Dana Class: Dana Class: (33)Selenates and Tellurates
  (33.03)with other anion groups
  (33.03.04)Dana Group Ilinskite! NaCu5O2(SeO3)2Cl Pbnm 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 04.JG.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.J - Arsenites, Antimonites, Bismuthites, Sulfites,
  04.JG -Selenites with additional anions, without H2O
04.JG.20 Ilinskite! NaCu5O2(SeO3)2Cl Pbnm 2/m 2/m 2/m

Other Ilinskite Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.83,p186,1998) OPTIC PROP.(MinRec)
Help on See Also: See Also: Links to other databases for Ilinskite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Dana No: Strunz No: 04.JG.20





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