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Kumdykolite Mineral Data
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General Kumdykolite Information
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 Chemical Formula: |
NaAlSi3O8 |
| Composition: |
Molecular Weight = 262.22 gm |
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Sodium 8.77 % Na 11.82 % Na2O |
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Aluminum 10.29 % Al 19.44 % Al2O3 |
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Silicon 32.13 % Si 68.74 % SiO2 |
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Oxygen 48.81 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
NaAlSi3O8 |
| Environment: |
High Pressure polymorph of albite. Feldspar group |
| IMA Status: |
Proposed IMA 2007 |
| Locality: |
Kumdy Kol, Kokchetav, Northern Kazakhstan Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Synonym: |
IMA2007-049 |
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Kumdykolite Crystallography
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| Axial Ratios: |
a:b:c =0.9493:1:0.5576 |
| Cell Dimensions: |
a = 8.24, b = 8.68, c = 4.84, Z = 4; V = 346.17 Den(Calc)= 5.03 |
| Crystal System: |
Orthorhombic Space Group: P 2nn or Pmnn |
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Optical Properties of Kumdykolite
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| Optical Data: |
NCalc= 2.03 - from Gladstone-Dale relationship (KC = 0.2057) where Ncalc=Dcalc*KC+1
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Calculated Properties of Kumdykolite
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| Electron Density: |
Bulk Density (Electron Density)=4.99 gm/cc
note: Specific Gravity of Kumdykolite =5.03 gm/cc.
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| Fermion Index: |
Fermion Index = 0.01
Boson Index = 0.99 |
| Photoelectric: |
PEKumdykolite = 1.67 barns/electron
U=PEKumdykolite x rElectron Density= 8.35 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kumdykolite is Not Radioactive |
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Kumdykolite Classification
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| Dana Class: |
76.01.08.02 (76)Tectosilicate Al-Si Framework |
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(76.01)with Al-Si frameworks |
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(76.01.08)Hexagonal Feldspars (High Pressure) |
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76.01.08.01 Kokchetavite! KAlSi3O8 P 6/mmm(?) 6/m 2/m 2/m |
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76.01.08.02 Kumdykolite NaAlSi3O8 P 2nn or Pmnn Ortho |
| Strunz Class: |
09.FA.45 09 - SILICATES (Germanates) |
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09.F - Tektosilicates without Zeolitic H2O |
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09.FA -Tektosilicates without additional non-tetrahedral anions, (Al,B):Si = 1:1 |
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09.FA.45 Svyatoslavite CaAl2Si2O8 P 21 2 |
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09.FA.45 Kumdykolite NaAlSi3O8 P 2nn or Pmnn Ortho |
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Other Kumdykolite Information
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| 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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Print or Cut-and-Paste your Kumdykolite Specimen Label here :
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Kumdykolite
NaAlSi3O8
Dana No: 76.01.08.02 Strunz No: 09.FA.45
Locality:
Notes:
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