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Paralabuntsovite-Mg Mineral Data
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General Paralabuntsovite-Mg Information
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 Chemical Formula: |
Na8K8Mg8Ti16(Si4O12)8(O,OH)16• n(H2O) |
| Composition: |
Molecular Weight = 4,336.11 gm |
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Potassium 7.21 % K 8.69 % K2O |
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Sodium 4.24 % Na 5.72 % Na2O |
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Magnesium 4.48 % Mg 7.44 % MgO |
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Titanium 17.67 % Ti 29.47 % TiO2 |
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Silicon 20.73 % Si 44.34 % SiO2 |
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Hydrogen 0.65 % H 5.82 % H2O |
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Oxygen 45.02 % O |
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______ ______ |
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100.00 % 101.48 % = TOTAL OXIDE |
| Empirical Formula: |
Na8K8Mg8Ti16(Si4O12)8O8(OH)8•10(H2O) |
| IMA Status: |
Proposed IMA 2000 (Dana # Added) |
| Locality: |
Link to MinDat.org Location Data. |
| Name Origin: |
Named for the structural and Mg analog of the labuntsovite group. |
| Synonym: |
IMA2000-A |
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Paralabuntsovite-Mg Crystallography
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| Axial Ratios: |
a:b:c =1.1304:1:0.5652 |
| Cell Dimensions: |
a = 15.6, b = 13.8, c = 7.8, Z = 1; beta = 117° V = 1,496.16 Den(Calc)= 4.81 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: I2/m |
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Physical Properties of Paralabuntsovite-Mg
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| Diaphaneity: |
Translucent to transparent |
| Hardness: |
6 - Orthoclase |
| Luster: |
Vitreous (Glassy) |
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Optical Properties of Paralabuntsovite-Mg
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| Optical Data: |
Biaxial (+) |
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NCalc= 2.3 - from Gladstone-Dale relationship (KC = 0.2706) where Ncalc=Dcalc*KC+1
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Calculated Properties of Paralabuntsovite-Mg
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| Electron Density: |
Bulk Density (Electron Density)=4.75 gm/cc
note: Specific Gravity of Paralabuntsovite-Mg =4.81 gm/cc.
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| Fermion Index: |
Fermion Index = 0.03
Boson Index = 0.97 |
| Photoelectric: |
PEParalabuntsovite-Mg = 4.56 barns/electron
U=PEParalabuntsovite-Mg x relectron= 21.64 barns/cc.
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| Radioactivity: |
GRapi = 102.75 (Gamma Ray American Petroleum Institute Units)
Concentration of Paralabuntsovite-Mg per GRapi unit = 0.97 (%)
Estimated Radioactivity from Paralabuntsovite-Mg  - barely detectable
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Paralabuntsovite-Mg Classification
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| Dana Class: |
60.01.03g.01 (60)Cyclosilicate Four-Membered Rings |
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(60.01)as Titanosilicates |
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(60.01.03g)Labuntsovite Group (Paralabuntsovite subgroup Monoclinic [I2/m]) |
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60.01.03g.01 Paralabuntsovite-Mg! Na8K8Mg8Ti16(Si4O12)8(O,OH)16•n(H2O) I2/m 2/m |
| Strunz Class: |
09.CE.30f 09 - SILICATES (Germanates) |
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09.C - Cyclosilicates |
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09.CE -[Si4O12]8- 4-membered single rings (vierer-Einfachringe), |
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09.CE.30f Paralabuntsovite-Mg! Na8K8Mg8Ti16(Si4O12)8(O,OH)16•n(H2O) I2/m 2/m |
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Other Paralabuntsovite-Mg Information
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| See Also: |
Links to other databases for Paralabuntsovite-Mg :
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 Paralabuntsovite-Mg Specimen Label here :
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Paralabuntsovite-Mg
Na8K8Mg8Ti16(Si4O12)8(O,OH)16• n(H2O)
Dana No: 60.01.03g.01 Strunz No: 09.CE.30f
Locality:
Notes:
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