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Gutkovaite-Mn Mineral Data

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General Gutkovaite-Mn Information

Help on Chemical Formula: Chemical Formula: CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4•5(H2O)
Help on Composition: Composition: Molecular Weight = 1,243.09 gm
   Potassium   5.19 %  K     6.25 % K2O
   Barium      0.88 %  Ba    0.99 % BaO
   Sodium      0.13 %  Na    0.17 % Na2O
   Strontium   7.47 %  Sr    8.84 % SrO
   Calcium     3.22 %  Ca    4.51 % CaO
   Magnesium   0.10 %  Mg    0.16 % MgO
   Zirconium   0.07 %  Zr    0.10 % ZrO2
   Titanium   13.83 %  Ti   23.07 % TiO2
   Manganese   3.62 %  Mn    4.68 % MnO
   Niobium     3.36 %  Nb    4.81 % Nb2O5
   Aluminum    0.09 %  Al    0.16 % Al2O3
   Zinc        0.11 %  Zn    0.13 % ZnO
   Iron        0.45 %  Fe    0.58 % FeO
   Silicon    18.07 %  Si   38.67 % SiO2
   Hydrogen    0.91 %  H     8.17 % H2O
   Oxygen     42.49 %  O
             ______        ______ 
             100.00 %      101.29 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaNa0.07K1.65Ba0.08Sr1.06Mn2+0.82Fe2+0.1Mg0.05Zn0.02Ti3.59Nb0.45Zr0.01Si8Al0.04O24.14 O2.47(OH)1.53�4.87(H2O)
Help on Environment: Environment: Pegmitite within nepheline syenite. (labuntosovite group; structure)
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Mooount Maly Mannepakhk, Khibiny alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for N. N. Gukova (1896-1960?), Russian mineralogist..
Help on Synonym: Synonym: IMA2001-038
 

Gutkovaite-Mn Image

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  Gutkovaite-Mn

Comments: Pale pink gutkovaite-(Mn) in matrix.
Location: Malyi Mannepakhk Mt., Chibiny, Kola, Russia. Scale: Specimen Size 1.5x2 cm.
© Diederik Visser

Gutkovaite-Mn Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.0295:1:0.5587
Help on Cell Dimensions: Cell Dimensions: a = 14.3, b = 13.889, c = 7.76, Z = 2; beta = 117.51° V = 1,366.97 Den(Calc)= 3.02
Help on Crystal System: Crystal System: Monoclinic - Domatic H-M Symbol (m) Space Group: Cm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.05(1)(241,240), 3.22(0.9)(421,402,400), 7(0.7)(020,001), 2.48(0.6)(441,403,401), 2.57(0.5)(242,241), 6.33(0.5)(201,200), 1.428(0.3), 1
 

Physical Properties of Gutkovaite-Mn

Help on Cleavage: Cleavage: None
Help on Color: Color: Pale yellowish pink.
Help on Density: Density: 2.83
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Gutkovaite-Mn

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.004 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.066 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2421,KPDmeas= 0.2583,KC= 0.2593
Ncalc = 1.73 - 1.78
Help on Optical Data: Optical Data: Biaxial (+), a=1.688, b=1.7, g=1.805, bire=0.1170, 2V(Calc)=40, 2V(Meas)=35. Dispersion dispersion not observed.
 

Calculated Properties of Gutkovaite-Mn

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.76 gm/cc
note: Specific Gravity of Gutkovaite-Mn =2.83 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEGutkovaite-Mn = 21.70 barns/electron
U=PEGutkovaite-Mn x relectron= 59.97 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 73.09 (Gamma Ray American Petroleum Institute Units)
Concentration of Gutkovaite-Mn per GRapi unit = 1.37 (%)

Estimated Radioactivity from Gutkovaite-Mn - barely detectable

 

Gutkovaite-Mn Classification
Help on Dana Class: Dana Class: 60.01.03f.01 (60)Cyclosilicate Four-Membered Rings
  (60.01)as Titanosilicates
  (60.01.03f)Labuntsovite Group (Gutkovaite subgroup Monoclinic [Cm])
 
60.01.03f.01 Gutkovaite-Mn! CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4•5(H2O) Cm m
 
60.01.03f.02 Alsakharovite-Zn! NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4•7(H2O) Cm m
 
60.01.03f.03 Neskevaaraite-Fe! NaK3Fe(Ti,Nb)4(Si4O12)2(O,OH)4•6(H2O) Cm m
Help on Strunz Class: Strunz Class: 09.CE.30h 09 - SILICATES (Germanates)
  09.C - Cyclosilicates
  09.CE -[Si4O12]8- 4-membered single rings (vierer-Einfachringe),
 
09.CE.30h Gutkovaite-Mn! CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4•5(H2O) Cm m
 
09.CE.30h Alsakharovite-Zn! NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4•7(H2O) Cm m
 
09.CE.30h Neskevaaraite-Fe! NaK3Fe(Ti,Nb)4(Si4O12)2(O,OH)4•6(H2O) Cm m
 

Other Gutkovaite-Mn Information
Help on References: References: NAME( AmMin, v 88, p 931) PHYS. PROP.(AmMin, v 88, p 931) OPTIC PROP.(AmMin, v 88, p 931)
Help on See Also: See Also: Links to other databases for Gutkovaite-Mn :
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 Gutkovaite-Mn Specimen Label here :

Gutkovaite-Mn

CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4•5(H2O)
Dana No: 60.01.03f.01 Strunz No: 09.CE.30h
Locality:

 

Notes:

 
 
   
 

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