Mineralogy Database

Kumdykolite Mineral Data

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General Kumdykolite Information

Help on Chemical  Formula: Chemical Formula: NaAlSi3O8
Help on Composition: Composition: Molecular Weight = 262.22 gm
   Sodium     8.77 %  Na   11.82 % Na2O
   Aluminum  10.29 %  Al   19.44 % Al2O3
   Silicon   32.13 %  Si   68.74 % SiO2
   Oxygen    48.81 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaAlSi3O8
Help on Environment: Environment: High Pressure polymorph of albite. Feldspar group
Help on IMA Status: IMA Status: Proposed IMA 2007
Help on Locality: Locality: Kumdy Kol, Kokchetav, Northern Kazakhstan Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Synonym: Synonym: IMA2007-049

Kumdykolite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9493:1:0.5576
Help on Cell Dimensions: Cell Dimensions: a = 8.24, b = 8.68, c = 4.84, Z = 4; V = 346.17 Den(Calc)= 5.03
Help on Crystal System: Crystal System: Orthorhombic Space Group: P 2nn or Pmnn

Optical Properties of Kumdykolite

Help on Optical Data: Optical Data: NCalc= 2.03 - from Gladstone-Dale relationship (KC = 0.2057) where Ncalc=Dcalc*KC+1

Calculated Properties of Kumdykolite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.99 gm/cc
note: Specific Gravity of Kumdykolite =5.03 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEKumdykolite = 1.67 barns/electron
U=PEKumdykolite x rElectron Density= 8.35 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kumdykolite is Not Radioactive

Kumdykolite Classification

Help on  Dana Class: Dana Class: (76)Tectosilicate Al-Si Framework
  (76.01)with Al-Si frameworks
  (76.01.08)Hexagonal Feldspars (High Pressure) Kokchetavite! KAlSi3O8 P 6/mmm(?) 6/m 2/m 2/m Kumdykolite NaAlSi3O8 P 2nn or Pmnn Ortho
Help on  Strunz Class: Strunz Class: 09.FA.45 09 - SILICATES (Germanates)
  09.F - Tektosilicates without Zeolitic H2O
  09.FA -Tektosilicates without additional non-tetrahedral anions, (Al,B):Si = 1:1
09.FA.45 Svyatoslavite CaAl2Si2O8 P 21 2
09.FA.45 Kumdykolite NaAlSi3O8 P 2nn or Pmnn Ortho

Other Kumdykolite Information

Help on See Also: See Also: Links to other databases for Kumdykolite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Dana No: Strunz No: 09.FA.45