Strontio-orthojoaquinite  Mineral Data

Strontio-orthojoaquinite Mineral Data

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General Strontio-orthojoaquinite Information

Help on Chemical  Formula: Chemical Formula: (Na,Fe++)2Ba2Sr2Ti2[Si4O12]2(O,OH)2•(H2O)
Help on Composition: Composition: Molecular Weight = 1,284.18 gm
   Barium     21.39 %  Ba   23.88 % BaO
   Sodium      1.79 %  Na    2.41 % Na2O
   Strontium  13.65 %  Sr   16.14 % SrO
   Titanium    7.46 %  Ti   12.44 % TiO2
   Iron        4.35 %  Fe    5.59 % FeO
   Silicon    17.50 %  Si   37.43 % SiO2
   Hydrogen    0.24 %  H     2.10 % H2O
   Oxygen     33.64 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaFe2+Ba2Sr2Ti2(Si4O12)2(OH)O•(H2O)
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: Dallas Gem mine, San Benito Co. California. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its composition, orthorhombic crystal structure, and the relationship to joaquinite (named for Joaquin Ridge, Diablo Range, California, USA).
Help on Synonym: Synonym: IMA2000-D
 

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Strontio-orthojoaquinite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0756:1:2.2902
Help on Cell Dimensions: Cell Dimensions: a = 10.517, b = 9.777, c = 22.392, Z = 4; V = 2,302.45 Den(Calc)= 3.70
Help on Crystal System: Crystal System: OrthorhombicSpace Group: Pbcm or Pbc2
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.801(1), 2.967(0.72), 3.001(0.48),
Click Here for Large Strontio-orthojoaquinite Structure Window Crystal Structure:

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Kato T , Mizota T , Journal of the Faculty of Liberal Arts. Yamaguchi University (Natural Science) , 24 (1990) p.23-32, The crystal structure of strontio-orthojoaquinite, Locality: amphibole-quartz-albite dike cutting serpentinite in Ohmi, Nigata Prefecture, Japan

 

Physical Properties of Strontio-orthojoaquinite

Help on Cleavage: Cleavage: {001} Good
Help on Color: Color: Green, Yellow green.
Help on Density: Density: 3.62
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 5.5 - Knife Blade
Help on Luster: Luster: Vitreous (Glassy)
 

Optical Properties of Strontio-orthojoaquinite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.002 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.02 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1989,KPDmeas= 0.2033,KC= 0.203
Ncalc = 1.73 - 1.75
Help on Optical Data: Optical Data: Biaxial (+), a=1.71, b=1.718, g=1.78, bire=0.0700, 2V(Calc)=42, 2V(Meas)=35-45.
 

Calculated Properties of Strontio-orthojoaquinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.38 gm/cc
note: Specific Gravity of Strontio-orthojoaquinite =3.62 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.06
Boson Index = 0.94
Help on Photoelectric: Photoelectric: PEStrontio-orthojoaquinite = 110.54 barns/electron
U=PEStrontio-orthojoaquinite x rElectron Density= 373.91 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Strontio-orthojoaquinite is Not Radioactive
 

Strontio-orthojoaquinite Classification

Help on  Dana Class: Dana Class: 60.01.01b.02 (60)Cyclosilicate Four-Membered Rings
  (60.01)as Titanosilicates
  (60.01.01b)Joaquinite group (Ortho-joaquinite subgroup)
 
60.01.01b.01 Orthojoaquinite-(Ce) NaFeBa2Ce2Ti2[Si4O12]2O2(OH)•(H2O) Ccmm or Ccm21 Ortho
 
60.01.01b.02 Strontio-orthojoaquinite (Na,Fe)2Ba2Sr2Ti2[Si4O12]2(O,OH)2•(H2O) Pbcm or Pbc2 Ortho
 
60.01.01b.03 Bario-orthojoaquinite Fe2(Ba,Sr)4Ti2[Si4O12]O2•(H2O) Ccmm or Ccm2 Ortho
 
60.01.01b.04 Byelorussite-(Ce) NaBa2(Ce,La)2MnTi2Si8O26(F,OH)•(H2O) P 212121 2 2 2
 
60.01.01b.05 Orthojoaquinite-(La)! Ba2Na(La,Ce)2FeTi2Si8O26(OH,O,F)•H2O Ccmm 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.CE.25 09 - SILICATES (Germanates)
  09.C - Cyclosilicates
  09.CE -[Si4O12]8- 4-membered single rings (vierer-Einfachringe),
 
09.CE.25 Byelorussite-(Ce) NaBa2(Ce,La)2MnTi2Si8O26(F,OH)•(H2O) P 212121 2 2 2
 
09.CE.25 Bario-orthojoaquinite Fe2(Ba,Sr)4Ti2[Si4O12]O2•(H2O) Ccmm or Ccm2 Ortho
 
09.CE.25 Joaquinite-(Ce) NaFeBa2Ce2(Ti,Nb)2[Si4O12]2O2(OH,F)•(H2O) C 2 2
 
09.CE.25 Orthojoaquinite-(Ce) NaFeBa2Ce2Ti2[Si4O12]2O2(OH)•(H2O) Ccmm or Ccm21 Ortho
 
09.CE.25 Strontio-orthojoaquinite (Na,Fe)2Ba2Sr2Ti2[Si4O12]2(O,OH)2•(H2O) Pbcm or Pbc2 Ortho
 
09.CE.25 Strontiojoaquinite (Na,Fe)2Ba2Sr2Ti2[Si4O12]2(O,OH)2•(H2O) C 2 2
 
09.CE.25 Orthojoaquinite-(La)! Ba2Na(La,Ce)2FeTi2Si8O26(OH,O,F)•H2O Ccmm 2/m 2/m 2/m
 

Other Strontio-orthojoaquinite Information

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

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Strontio-orthojoaquinite

(Na,Fe++)2Ba2Sr2Ti2[Si4O12]2(O,OH)2•(H2O)
Dana No: 60.01.01b.02 Strunz No: 09.CE.25
Locality:

 

Notes: