Martinite Mineral Data

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General Martinite Information

Help on Chemical  Formula: Chemical Formula: (Na,Ca)11Ca4(Si,S,B)14B2O40F2·4(H2O)
Help on Composition: Composition: Molecular Weight = 1,598.38 gm
   Sodium    11.51 %  Na   15.51 % Na2O
   Calcium   17.55 %  Ca   24.56 % CaO
   Silicon   19.33 %  Si   41.35 % SiO2
   Boron      0.68 %  B     2.18 % B2O3
   Hydrogen   0.50 %  H     4.51 % H2O
   Sulfur     4.01 %  S    10.02 % SO3
   Oxygen    44.04 %  O
   Fluorine   2.38 %  F     2.38 % F
               -   %  F    -1.00 % -O=F2
            ______        ______ 
            100.00 %       99.50 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na8Ca7Si11S2BO40F2·4(H2O)
Help on Environment: Environment: (reyerite group; structure)
Help on IMA Status: IMA Status: Proposed IMA 2001 (Dana # Added)
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Commission on New Minerals and Mineral Names (CNMMN)
Help on Synonym: Synonym: IMA2001-059
 

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Martinite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6803:1:0.6797
Help on Cell Dimensions: Cell Dimensions: a = 9.5437, b = 14.0268, c = 9.5349, Z = 1; alpha = 71.057°, beta = 119.788°, gamma = 105.846° V = 1,007.95 Den(Calc)= 2.63
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-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 Color: Color: Colorless, Purple.
Help on Diaphaniety: Diaphaniety: Transparent
Help on Luster: Luster: Vitreous (Glassy)
 

Optical Properties of Martinite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= -0.003 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2065,KC= 0.2059
Help on Optical Data: Optical Data: Biaxial (-), a=1.529, b=1.549, g=1.551, bire=0.0220
 

Calculated Properties of Martinite

Help on Electron Density: Electron Density:

relectron=2.62 gm/cc
note: rMartinite =2.63 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.01112
Boson Index = 0.98888
Help on Photoelectric: Photoelectric:

PEMartinite = 3.35 barns/electron
U=PEMartinite x relectron= 8.79 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: 73.2.2d.1 (73)Phyllosilicate Condensed Tetrahedral Sheets
  (73.2)with double and single layers
  (73.2.2d)Reyerite group (Triclinic Subgroup)
 
73.2.2d.1 Martinite ! (Na,Ca)11Ca4(Si,S,B)14B2O40F2·4(H2O) P1 1
 
73.2.2d.2 Lalondeite! (Na,Ca)6(Ca,Na)3Si16O38(F,OH)2·3(H2O) P1 1
Help on  Strunz Class: Strunz Class: VIII/HX.00-00 VIII - Silicates
  VIII/HX - Unclassified Strunz Phyllosilicates
  VIII/HX.00 - Reyerite Group
 

Other Martinite Information

Help on See Also: See Also: Links to other databases for Martinite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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Print or Cut-and-Paste your Martinite Specimen Label here :

Martinite

(Na,Ca)11Ca4(Si,S,B)14B2O40F2·4(H2O)
Dana No: 73.2.2d.1 Strunz No: VIII/HX.00-00
Locality:

 

Notes:

 

 
   
 
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