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Manganokukisvumite Mineral Data

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General Manganokukisvumite Information

Help on Chemical  Formula: Chemical Formula: Na6MnTi4Si8O28•4(H2O)
Help on Composition: Composition: Molecular Weight = 1,130.79 gm
   Potassium   0.17 %  K     0.21 % K2O
   Sodium     11.81 %  Na   15.92 % Na2O
   Calcium     0.07 %  Ca    0.10 % CaO
   Cerium      0.12 %  Ce    0.15 % Ce2O3
   Magnesium   0.15 %  Mg    0.25 % MgO
   Titanium   16.43 %  Ti   27.41 % TiO2
   Manganese   4.32 %  Mn    5.58 % MnO
   Niobium     0.49 %  Nb    0.71 % Nb2O5
   Aluminum    0.10 %  Al    0.18 % Al2O3
   Iron        0.44 %  Fe    0.57 % FeO
   Silicon    19.89 %  Si   42.56 % SiO2
   Hydrogen    0.71 %  H     6.37 % H2O
   Oxygen     45.28 %  O
             ______        ______ 
             100.00 %      100.01 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na5.81K0.05Ca0.02Ce0.01Mn2+0.89Fe2+0.09Mg0.07Al0.04Ti3.88Nb0.06Si8.01O28�4(H2O)
Help on Environment: Environment: Small cavities in albite-rich syenite breccia. Mn-dominanat analogue of kukisvumite and closely related to lintisite.
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: Poudrette Quarry, Mont Saint-Hilaire, Rouville County, Quebec, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the manganese-dominant analogue of kukisvumite.
Help on Synonym: Synonym: IMA2002-029

Manganokukisvumite Image

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Comments: Scanning electron photomicrograph of manganokukisvumite. (CanMin, v 42 , p 782).
Location: Mont Saint-Hilaire, Quebec. Scale: See Image.
© Canadian Mineralogist

Manganokukisvumite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =3.3732:1:0.6061
Help on Cell Dimensions: Cell Dimensions: a = 29.05, b = 8.612, c = 5.22, Z = 2; V = 1,305.93 Den(Calc)= 2.88
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pccn
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 14.47(1)(200), 3.025(0.4)(910), 2.881(0.2)(521),6.43(0.2)(310), 4.83(0.1)(600), 2.146(0.1)(930), 2.458(0.1)(402), 2.591(0.1)(721), 3.743(0.1)(701),

Physical Properties of Manganokukisvumite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless.
Help on Density: Density: 2.86
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 5.5-6 - Knife Blade-Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Manganokukisvumite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.031 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.038 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2538,KPDmeas= 0.2556,KC= 0.2638
Ncalc = 1.75 - 1.76
Help on Optical Data: Optical Data: Biaxial (-), a=1.657, b=1.741-1.747, g=1.789-1.795, bire=0.1320-0.1380, 2V(Calc)=68-70, 2V(Meas)=70. Dispersion dispersion not observed.

Calculated Properties of Manganokukisvumite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.81 gm/cc
note: Specific Gravity of Manganokukisvumite =2.86 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEManganokukisvumite = 6.18 barns/electron
U=PEManganokukisvumite x relectron= 17.38 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 132.37 (Gamma Ray American Petroleum Institute Units)
Concentration of Manganokukisvumite per GRapi unit = 0.76 (%)

Estimated Radioactivity from Manganokukisvumite - barely detectable


Manganokukisvumite Classification

Help on  Dana Class: Dana Class: (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.01)with chains P=2
  (65.01.06)Lorenzenite group Lorenzenite Na2Ti2Si2O9 P bcn 2/m 2/m 2/m Kukisvumite Na6ZnTi4Si8O28•4(H2O) Pccn 2/m 2/m 2/m Lintisite Na3LiTi2Si4O14•2(H2O) C 2/c 2/m Manganokukisvumite! Na6MnTi4Si8O28•4(H2O) Pccn 2/m 2/m 2/m Punkaruaivite! Li{Ti2(OH)2[Si4O11(OH)]}•H2O C 2/c 2/m
Help on  Strunz Class: Strunz Class: 09.DB.20 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DB -Inosilicates with 2-periodic single chains, Si2O6; Pyroxene-related minerals
09.DB.20 Kukisvumite Na6ZnTi4Si8O28•4(H2O) Pccn 2/m 2/m 2/m
09.DB.20 Manganokukisvumite! Na6MnTi4Si8O28•4(H2O) Pccn 2/m 2/m 2/m

Other Manganokukisvumite Information

Help on References: References: NAME( CanMin, v 42, p 781) PHYS. PROP.(CanMin, v 42, p 781) OPTIC PROP.(CanMin, v 42, p 781)
Help on See Also: See Also: Links to other databases for Manganokukisvumite :
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.DB.20





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