Korshunovskite Mineral Data

Korshunovskite Mineral Data
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General Korshunovskite Information

Help on Chemical Formula: Chemical Formula: Mg2Cl(OH)3•3.5-4(H2O)
Help on Composition: Composition: Molecular Weight = 207.15 gm
   Magnesium  23.47 %  Mg   38.91 % MgO
   Hydrogen    5.35 %  H    47.83 % H2O
   Chlorine   17.11 %  Cl   17.11 % Cl
                -   %   Cl   -3.86 % -O=Cl2   
   Oxygen     54.07 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg2Cl(OH)3•4(H2O)
Help on Environment: Environment: Veinlets in dolomitic marble.
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: Korshunov iron ore deposti, Irkutsk, Siberia, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after it's locality.
Help on Name Pronunciation: Name Pronunciation: Korshunovskite + Pronunciation Say KORSHUNOVSKITE
Help on Synonym: Synonym: ICSD 24668
  PDF 36-388
 

Korshunovskite Image

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Korshunovskite

Comments: White fibrous korshunovskite crystals.
Location: Korshunovskoye skarn Fe Deposit, Irkutsk, Irkutskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Korshunovskite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.3824:1:1.1872
Help on Cell Dimensions: Cell Dimensions: a = 8.64, b = 6.25, c = 7.42, Z = 2; alpha = 101.4°, beta = 103.9°, gamma = 72.7° V = 364.02 Den(Calc)= 1.89
Help on Crystal System: Crystal System: TriclinicSpace Group: P1 or P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 8.04(1), 2.439(0.95), 3.843(0.75),
Click Here for Large Korshunovskite Structure Window Crystal Structure:

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de Wolff P M , Walter-Levy L , Acta Crystallographica , 6 (1953) p.40-44, The crystal structure of Mg2(OH)3(Cl,Br)*4H2O, Locality: synthetic

 

Physical Properties of Korshunovskite

Help on Color: Color: Colorless.
Help on Density: Density: 1.798 - 1.787, Average = 1.79
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Korshunovskite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.011 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.031 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2854,KPDmeas= 0.2977,KC= 0.2945
Ncalc = 1.53 - 1.55
Help on Optical Data: Optical Data: Biaxial (-), a=1.516, b=1.538, g=1.547, bire=0.0310, 2V(Calc)=64, 2V(Meas)=62.
 

Calculated Properties of Korshunovskite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.87 gm/cc
note: Specific Gravity of Korshunovskite =1.79 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEKorshunovskite = 1.72 barns/electron
U=PEKorshunovskite x rElectron Density= 3.21 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Korshunovskite is Not Radioactive
 

Korshunovskite Classification
Help on Dana Class: Dana Class: 10.01.05.01 (10)Oxyhalides and Hydroxyhalides
  (10.01)where (A)2 (O,OH)3 Xq
  (10.01.05)Dana Group
 
10.01.05.01 Korshunovskite Mg2Cl(OH)3•3.5-4(H2O) P1 or P1 Tri
Help on Strunz Class: Strunz Class: 03.BD.15 03 - HALIDES
  03.B - Simple Halides, with H2O
  03.BD -Simple Halides with H2O and additional OH
 
03.BD.15 Korshunovskite Mg2Cl(OH)3•3.5-4(H2O) P1 or P1 Tri
 

Other Korshunovskite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Korshunovskite :
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 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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

Korshunovskite

Mg2Cl(OH)3•3.5-4(H2O)
Dana No: 10.01.05.01 Strunz No: 03.BD.15
Locality:

 

Notes: