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Martinite Mineral Data

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General Martinite Information

Help on Chemical  Formula: Chemical Formula: (Na,[ ],Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2•4(H2O)
Help on Composition: Composition: Molecular Weight = 1,589.21 gm
   Sodium     13.29 %  Na   17.92 % Na2O
   Calcium    12.08 %  Ca   16.90 % CaO
   Magnesium   0.02 %  Mg    0.03 % MgO
   Titanium    0.03 %  Ti    0.05 % TiO2
   Manganese   0.07 %  Mn    0.09 % MnO
   Silicon    23.12 %  Si   49.45 % SiO2
   Boron       2.58 %  B     8.32 % B2O3
   Hydrogen    0.61 %  H     5.48 % H2O
   Sulfur      0.93 %  S     2.32 % SO3
   Chlorine    1.12 %  Cl    1.12 % Cl
                -   %   Cl   -0.25 % -O=Cl2   
   Oxygen     43.95 %  O
   Fluorine    2.20 %  F     2.20 % F
                -   %   F    -0.93 % -O=F2    
             ______        ______ 
             100.00 %      102.69 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na9.19Ca0.82Ca3.97Mn2+0.02Mg0.01Si13.08S0.464(B0.45)Ti0.01B2O38(OH)1.5Cl0.5F1.84(OH)0.16�4(H2O)
Help on Environment: Environment: Formed through the interaction of highly fractionated, hyperagpaitic fluids with sodalite syenite xenoliths. (reyerite group; structure)
Help on IMA Status: IMA Status: Approved IMA 2001 (Dana # Added)
Help on Locality: Locality: Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Name for Robert Fran�ois Martin (b. 1941), Professor of Geology at McGill University and long-time editor of The Canadian Mineralogist.
Help on Synonym: Synonym: IMA2001-059
 

Martinite Image

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  Martinite

Comments: Colorless, pseudohexagonal plate of martinite associated with sodalite and a clinoamphibole. (CanMin, v45:1281).
Location: Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada. Scale: Crystal size 40 µm.
© Canadian Mineralogist

Martinite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0009:1:1.4711
Help on Cell Dimensions: Cell Dimensions: a = 9.5437, b = 9.5349, c = 14.0268, Z = 1; alpha = 108.943°, beta = 74.154°, gamma = 119.78° V = 1,008.03 Den(Calc)= 2.62
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 13.18(1), 6.58(0.43), 2.968(0.37),3.29(0.34), 2.908(0.27), 1.794(0.2),
 

Physical Properties of Martinite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Colorless, Purple.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Martinite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.019 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2138,KC= 0.218
Ncalc = 1.55
Help on Optical Data: Optical Data: Biaxial (-), a=1.529, b=1.549, g=1.551, bire=0.0220, 2V(Calc)=34, 2V(Meas)=38. Dispersion dispersion not observed.
 

Calculated Properties of Martinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.53 gm/cc
note: Specific Gravity of Martinite =2.54 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEMartinite = 2.77 barns/electron
U=PEMartinite x rElectron Density= 7.01 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Martinite is Not Radioactive
 

Martinite Classification

Help on  Dana Class: Dana Class: 73.02.02d.01 (73)Phyllosilicate Condensed Tetrahedral Sheets
  (73.02)with double and single layers
  (73.02.02d)Reyerite group (Triclinic Subgroup)
 
73.02.02d.01 Martinite! (Na,[],Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2•4(H2O) P1 1
 
73.02.02d.02 Lalondeite! (Na,Ca)6(Ca,Na)3Si16O38(F,OH)2•3(H2O) P1 1
Help on  Strunz Class: Strunz Class: 09.EE.80 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EE -Single tetrahedral nets of 6-membered rings
 
09.EE.80 Fedorite KNa4Ca4(Al,Si)16O36(OH,F)4•6(H2O) C1 1
 
09.EE.80 Martinite! (Na,[],Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2•4(H2O) P1 1
 

Other Martinite Information

Help on References: References: NAME( CanMin, v45:1281) PHYS. PROP.(CanMin, v45:1281) OPTIC PROP.(CanMin, v45:1281)
Help on See Also: See Also: Links to other databases for Martinite :
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 Martinite Specimen Label here :

Martinite

(Na,[ ],Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2•4(H2O)
Dana No: 73.02.02d.01 Strunz No: 09.EE.80
Locality:

 

Notes:

 

 
   
 


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