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Tuperssuatsiaite Mineral Data

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General Tuperssuatsiaite Information

Help on Chemical  Formula: Chemical Formula: Na(Fe+++,Mn)3[Si8O20](OH)2•n(H2O)
Help on Composition: Composition: Molecular Weight = 818.31 gm
   Sodium      5.34 %  Na    7.20 % Na2O
   Titanium    1.17 %  Ti    1.95 % TiO2
   Manganese   3.36 %  Mn    4.33 % MnO
   Iron       15.01 %  Fe   21.47 % Fe2O3
   Silicon    27.46 %  Si   58.74 % SiO2
   Hydrogen    0.74 %  H     6.60 % H2O
   Oxygen     46.92 %  O
             ______        ______ 
             100.00 %      100.29 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na1.9Fe3+2.2Mn2+0.5Ti0.2Si8O20(OH)2�2(H2O)
Help on Environment: Environment: A late-stage, low-temperature, hydrothermal mineral in veins cutting nepheline syenite and in sodalite-nepheline syenite pegmatite.
Help on IMA Status: IMA Status: Approved IMA 1984
Help on Locality: Locality: Tuperssuatsiait Bay, Greenland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Tuperssuatsiaite + Pronunciation Say TUPERSSUATSIAITE

Tuperssuatsiaite Image

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  Tuperssuatsiaite   Aluminoferrotschermakite

Comments: Golden acicular tuperssuatsiaite crystal spray with clear apophyllite and dark green aluminoferrotschermigite.
Location: Aris Quarry, Khomas, Namibia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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Comments: Rich, brown tufts up to 0,4 cm of acicular tuperssuatsiaite crystals on a phonolite matrix.
Location: Aris Phonolite, Namibia. Scale: Picture size 4 cm.
© Sandro Maggia/Minernet.it

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Comments: Two mm golden acicular sprays of tuperssuatsiaite on matrix.
Location: Aris Quarry, Windhoek, Namibia. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Tuperssuatsiaite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7866:1:0.2951
Help on Cell Dimensions: Cell Dimensions: a = 14.034, b = 17.841, c = 5.265, Z = 2; beta = 103.67° V = 1,280.91 Den(Calc)= 2.12
Help on Crystal System: Crystal System: Monoclinic Space Group: C 2/m
Help on X Ray Diffraction: 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),

Physical Properties of Tuperssuatsiaite

Help on Cleavage: Cleavage: {100} Good
Help on Color: Color: Reddish brown.
Help on Density: Density: 2.465
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Bladed - Aggregates of thin lath-like crystals (e.g. kyanite).
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: brownish yellow

Optical Properties of Tuperssuatsiaite

Help on Gladstone-Dale: 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
Help on Optical Data: 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..
Help on Pleochroism (x): Pleochroism (x): colorless or colorless.
Help on Pleochroism (y): Pleochroism (y): colorless or light reddish brown.
Help on Pleochroism (z): Pleochroism (z): pale yellowish brown or dark reddish brown.

Calculated Properties of Tuperssuatsiaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.44 gm/cc
note: Specific Gravity of Tuperssuatsiaite =2.47 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PETuperssuatsiaite = 6.61 barns/electron
U=PETuperssuatsiaite x rElectron Density= 16.12 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tuperssuatsiaite is Not Radioactive

Tuperssuatsiaite Classification

Help on  Dana Class: Dana Class: 74.03.01a.02 (74)Phyllosilicate Modulated Layers
  (74.03)with joined strips
  (74.03.01a)Palygorskite-sepiolite group (Palygorskite subgroup)
74.03.01a.01 Palygorskite (Mg,Al)2Si4O10(OH)•4(H2O) C 2/m 2/m
74.03.01a.02 Tuperssuatsiaite Na(Fe,Mn)3[Si8O20](OH)2•n(H2O) C 2/m Mono
74.03.01a.03 Yofortierite (Mn,Mg)5Si8O20(OH)2•8-9(H2O) Pn(?) m
74.03.01a.04 Kalifersite! (K,Na)5Fe7Si20O50(OH)6•12(H2O) P1 1
Help on  Strunz Class: Strunz Class: 09.EE.20 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EE -Single tetrahedral nets of 6-membered rings
09.EE.20 Palygorskite (Mg,Al)2Si4O10(OH)•4(H2O) C 2/m 2/m
09.EE.20 Yofortierite (Mn,Mg)5Si8O20(OH)2•8-9(H2O) Pn(?) m
09.EE.20 Tuperssuatsiaite Na(Fe,Mn)3[Si8O20](OH)2•n(H2O) C 2/m Mono

Other Tuperssuatsiaite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(AmMin, Vol 87, p 1458) OPTIC PROP.(AntBidBlaNic2)
Help on See Also: 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

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Dana No: 74.03.01a.02 Strunz No: 09.EE.20





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