General Tuperssuatsiaite Information Chemical Formula: |
Na(Fe+++,Mn)3[Si8O20](OH)2•n(H2O) |
Composition: |
Molecular Weight = 818.31 gm |
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Sodium 5.34 % Na 7.20 % Na2O |
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Titanium 1.17 % Ti 1.95 % TiO2 |
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Manganese 3.36 % Mn 4.33 % MnO |
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Iron 15.01 % Fe 21.47 % Fe2O3 |
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Silicon 27.46 % Si 58.74 % SiO2 |
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Hydrogen 0.74 % H 6.60 % H2O |
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Oxygen 46.92 % O |
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______ ______ |
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100.00 % 100.29 % = TOTAL OXIDE |
Empirical Formula: |
Na1.9Fe3+2.2Mn2+0.5Ti0.2Si8O20(OH)2·2(H2O) |
Environment: |
A late-stage, low-temperature, hydrothermal mineral in veins cutting nepheline syenite and in sodalite-nepheline syenite pegmatite. |
IMA Status: |
Approved IMA 1984 |
Locality: |
Tuperssuatsiait Bay, Greenland. Link to MinDat.org Location Data. |
Name Origin: |
Named for the locality. |
Name Pronunciation: |
Tuperssuatsiaite + Pronunciation |
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Tuperssuatsiaite Crystallography Axial Ratios: |
a:b:c =0.7866:1:0.2951 |
Cell Dimensions: |
a = 14.034, b = 17.841, c = 5.265, Z = 2; beta = 103.67° V = 1,280.91 Den(Calc)= 2.12 |
Crystal System: |
MonoclinicSpace Group: C 2/m |
X Ray Diffraction: |
By Intensity(I/Io): 10.82(1), 2.638(0.4), 2.235(0.3),2.51(0.3), 2.544(0.3), 3.395(0.3), 4.14(0.2), |
Crystal Structure:
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Mouse
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| Physical Properties of Tuperssuatsiaite Cleavage: |
{100} Good |
Color: |
Reddish brown. |
Density: |
2.465 |
Diaphaneity: |
Transparent |
Fracture: |
Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments. |
Habit: |
Acicular - Occurs as needle-like crystals. |
Habit: |
Bladed - Aggregates of thin lath-like crystals (e.g. kyanite). |
Luster: |
Vitreous (Glassy) |
Streak: |
brownish yellow |
| Optical Properties of Tuperssuatsiaite Gladstone-Dale: |
CI meas= 0.056 (Good) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.097 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2657,KPDmeas= 0.2285,KC= 0.2421 Ncalc = 1.51 - 1.6 Optical Data: |
Biaxial (+), a=1.54, b=1.56, g=1.58-1.6, bire=0.0400-0.0600, 2V(Calc)=74-88, 2V(Meas)=103.5-103.. |
Pleochroism (x): |
colorless or colorless. |
Pleochroism (y): |
colorless or light reddish brown. |
Pleochroism (z): |
pale yellowish brown or dark reddish brown. |
| Calculated Properties of Tuperssuatsiaite Electron Density: |
Bulk Density (Electron Density)=2.44 gm/cc |
note: Specific Gravity of Tuperssuatsiaite =2.47 gm/cc. Fermion Index: |
Fermion Index = 0.01 |
Boson Index = 0.99 Photoelectric: |
PETuperssuatsiaite = 6.61 barns/electron |
U=PETuperssuatsiaite x rElectron Density= 16.12 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Tuperssuatsiaite is Not Radioactive | Tuperssuatsiaite Classification Dana Class: |
74.03.01a.02 (74)Phyllosilicate Modulated Layers |
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(74.03)with joined strips |
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(74.03.01a)Palygorskite-sepiolite group (Palygorskite subgroup) |
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Strunz Class: |
09.EE.20 09 - SILICATES (Germanates) |
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09.E - Phyllosilicates |
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09.EE -Single tetrahedral nets of 6-membered rings |
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| Other Tuperssuatsiaite Information References: |
NAME( AntBidBlaNic2) PHYS. PROP.(AmMin, Vol 87, p 1458) OPTIC PROP.(AntBidBlaNic2) |
See Also: |
Links to other databases for Tuperssuatsiaite : |
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 - Am. Min. Crystal Structure Database 4 - Athena 5 - EUROmin Project 6 - Ecole des Mines de Paris 7 - GeoScienceWorld 8 - Google Images 9 - Google Scholar 10 - Handbook of Mineralogy (MinSocAm) 11 - Handbook of Mineralogy (UofA) 12 - MinDAT 13 - Mineralienatlas (Deutsch) 14 - Online Mineral Museum 15 - QUT Mineral Atlas 16 - Ruff.Info Search for Tuperssuatsiaite using: Visit our Advertisers for Tuperssuatsiaite : A Bijoux Google Search for TuperssuatsiaiteAdam's Minerals Google Search for Tuperssuatsiaite Cape Minerals Google Search for Tuperssuatsiaite Dakota Matrix Minerals Google Search for Tuperssuatsiaite Excalibur Mineral Corp. Google Search for Tuperssuatsiaite Exceptional Minerals Google Search for Tuperssuatsiaite John Betts Fine Minerals Search for Tuperssuatsiaite McDougall Minerals Google Search for Tuperssuatsiaite Mineral News Website Link Rock and Mineral Shows Google Search for Tuperssuatsiaite Weinrich Minerals, Inc. Google Search for Tuperssuatsiaite Ask about Tuperssuatsiaite here : Print or Cut-and-Paste your Tuperssuatsiaite Specimen Label here :
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