Mineralogy Database

Stronalsite Mineral Data

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General Stronalsite Information

Help on Chemical  Formula: Chemical Formula: SrNa2Al4Si4O16
Help on Composition: Composition: Molecular Weight = 609.86 gm
   Sodium      7.54 %  Na   10.16 % Na2O
   Strontium  14.37 %  Sr   16.99 % SrO
   Aluminum   17.70 %  Al   33.44 % Al2O3
   Silicon    18.42 %  Si   39.41 % SiO2
   Oxygen     41.98 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: SrNa2Al4Si4O16
Help on Environment: Environment: Basic tuff xenoliths.
Help on IMA Status: IMA Status: Approved IMA 1987
Help on Locality: Locality: Rendai, Kochi City, Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its composition (Strontium, Na, Al, Si).
Help on Name Pronunciation: Name Pronunciation: Stronalsite Say STRONALSITE

Stronalsite Image

Click Here for Larger   Image in a New Browser Window Images:
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  Stronalsite   Jadeite

Comments: White stronalsite veinlets in massive pale green jadeite.
Location: Ohasa, Okayama, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Stronalsite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8518:1:1.6928
Help on Cell Dimensions: Cell Dimensions: a = 8.408, b = 9.8699, c = 16.7083, Z = 4; V = 1,386.56 Den(Calc)= 2.92
Help on Crystal System: Crystal System: Orthorhombic - Pyramidal H-M Symbol (mm2) Space Group: Iba2
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.206(1), 3.504(0.8), 3.184(0.72),

Physical Properties of Stronalsite

Help on Cleavage: Cleavage: {100} Good, {001} Good
Help on Color: Color: White.
Help on Density: Density: 2.95
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 6.5 - Pyrite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Stronalsite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.015 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1942,KPDmeas= 0.1922,KC= 0.1951
Ncalc = 1.57 - 1.58
Help on Optical Data: Optical Data: Biaxial (+), a=1.563, b=1.564, g=1.574, bire=0.0110, 2V(Calc)=36, 2V(Meas)=32.

Calculated Properties of Stronalsite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.83 gm/cc
note: Specific Gravity of Stronalsite =2.92 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEStronalsite = 17.00 barns/electron
U=PEStronalsite x rElectron Density= 48.18 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Stronalsite is Not Radioactive

Stronalsite Classification

Help on  Dana Class: Dana Class: (76)Tectosilicate Al-Si Framework
  (76.01)with Al-Si frameworks
  (76.01.06)Banalsite group Banalsite BaNa2Al4Si4O16 Iba2 mm2 Stronalsite SrNa2Al4Si4O16 Iba2 mm2 Lisetite Na2CaAl4Si4O16 Pbc2 mm2 Svyatoslavite CaAl2Si2O8 P 21 2
Help on  Strunz Class: Strunz Class: 09.FA.60 09 - SILICATES (Germanates)
  09.F - Tektosilicates without Zeolitic H2O
  09.FA -Tektosilicates without additional non-tetrahedral anions, (Al,B):Si = 1:1
09.FA.60 Banalsite BaNa2Al4Si4O16 Iba2 mm2
09.FA.60 Stronalsite SrNa2Al4Si4O16 Iba2 mm2

Other Stronalsite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8, AmMin 91:1953) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Stronalsite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 09.FA.60





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