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Chabazite-Sr Mineral Data

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General Chabazite-Sr Information

Help on Chemical  Formula: Chemical Formula: (Sr,Ca,K2,Na2)[Al2Si4O12]•6(H2O)
Help on Composition: Composition: Molecular Weight = 534.42 gm
   Potassium   2.19 %  K     2.64 % K2O
   Sodium      0.86 %  Na    1.16 % Na2O
   Strontium   8.20 %  Sr    9.69 % SrO
   Calcium     3.75 %  Ca    5.25 % CaO
   Aluminum   11.61 %  Al   21.94 % Al2O3
   Silicon    18.92 %  Si   40.47 % SiO2
   Hydrogen    2.07 %  H    18.54 % H2O
   Oxygen     52.39 %  O
             ______        ______ 
             100.00 %       99.70 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Sr0.5Ca0.5K0.3Na0.2Al2.3Si3.6O12•5.5(H2O)
Help on Environment: Environment: Associated with cavities in corroded analcime in an aegirine pegmatite. Sr-analogue of chabazite
Help on IMA Status: IMA Status: Approved IMA 1999, Dana # Added
Help on Locality: Locality: Suoluaiv Mountain, Lovozero alkaline massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From Gk. chabazios, tune or melody, one of twenty stones named in the poem Peri lithos, which extolled the virtues of minerals. The poem is ascribed to Orpheus, legendary founder of the Orphic cult, which flourished in
Help on Name Pronunciation: Name Pronunciation: Chabazite-Sr + Pronunciation Say CHABAZITE-SR
Help on Synonym: Synonym: IMA1999-040

Chabazite-Sr Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.10025
Help on Cell Dimensions: Cell Dimensions: a = 13.715, c = 15.09, Z = 6; V = 2,458.17 Den(Calc)= 2.17
Help on Crystal System: Crystal System: Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: R 3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.92(1)(401), 9.38(0.8)(101), 1.697(0.7)(524,700,530),4.34(0.7)(211), 5.55(0.6)(021), 2.5(0.5),

Physical Properties of Chabazite-Sr

Help on Cleavage: Cleavage: {101} Distinct
Help on Color: Color: Colorless, Yellowish white.
Help on Density: Density: 2.16
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Irregular - Very brittle fracture producing irregular fragments
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Hardness: Hardness: 4-4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Chabazite-Sr

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.039 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.034 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2327,KPDmeas= 0.2338,KC= 0.2251
Ncalc = 1.49
Help on Optical Data: Optical Data: Uniaxial (+), w=1.503, e=1.507, bire=0.0040.

Calculated Properties of Chabazite-Sr

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.18 gm/cc
note: Specific Gravity of Chabazite-Sr =2.17 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEChabazite-Sr = 10.44 barns/electron
U=PEChabazite-Sr x relectron= 22.74 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 31.78 (Gamma Ray American Petroleum Institute Units)
Concentration of Chabazite-Sr per GRapi unit = 3.15 (%)

Estimated Radioactivity from Chabazite-Sr - barely detectable


Chabazite-Sr Classification

Help on  Dana Class: Dana Class: (77)Tectosilicate Zeolite group
  (77.01)true zeolites
  (77.01.02)Chabazite and related species Chabazite-Ca (Ca0.5,Na,K)4[Al4Si8O24]•12H2O P1 1 Chabazite-Na! (Na2,K2,Ca,Mg)[Al2Si4O12]•6(H2O) R 3m 3 2/m Chabazite-K! (K2,Ca,Na2,Mg)[Al2Si4O12]•6(H2O) R 3m 3 2/m Chabazite-Sr! (Sr,Ca,K2,Na2)[Al2Si4O12]•6(H2O) R 3m 3 2/m Herschelite? (Na,Ca,K)AlSi2O6•3(H2O) R 3m 3 2/m Willhendersonite KCaAl3Si3O12•5(H2O) P1 1 Offretite (K2,Ca,Mg)2.5Al5Si13O36•15(H2O) P 6m2 6 m2 Erionite-Na (Na2,K2,Ca)2[Al4Si14O36]•15(H2O) P 63/mmc 6/m 2/m 2/m Erionite-K! (K2,Ca,Na2)2[Al4Si14O36]•15(H2O) P 63/mmc 6/m 2/m 2/m Erionite-Ca! (Ca,K2,Na2)2[Al4Si14O36]•15(H2O) P 63/mmc 6/m 2/m 2/m Gmelinite-Na (Na2,Ca)Al2Si4O12•6(H2O) P 63/mmc 6/m 2/m 2/m Gmelinite-Ca! (Ca,Na2)Al2Si4O12•6(H2O) P 63/mmc 6/m 2/m 2/m Gmelinite-K! (K,Na,Ca)6(Al7Si17O48)•22(H2O) P 63/mmc 6/m 2/m 2/m Faujasite-Na (Na2,Ca,Mg)3.5[Al7Si17O48]•32(H2O) F d3m 4/m 3 2/m Faujasite-Ca! (Ca,Na2,Mg)3.5[Al7Si17O48]•32(H2O) F d3m 4/m 3 2/m Faujasite-Mg! (Mg,Na2,Ca)3.5[Al7Si17O48]•32(H2O) F d3m 4/m 3 2/m Levyne-Ca (Ca,Na2,K2)Al2Si4O12•6(H2O) R 3m 3 2/m Levyne-Na! (Na2,Ca,K2)Al2Si4O12•6(H2O) R 3m 3 2/m Tschortnerite! Ca4(Ca,Sr,K,Ba)3Cu3(OH)8[Si12Al12O48]•x(H2O),x>=20 F m3m 4/m 3 2/m
Help on  Strunz Class: Strunz Class: 09.GD.10 09 - SILICATES (Germanates)
  09.G - Tektosilicates with Zeolitic H2O
  09.GD -Chains of 6-membered rings � tabular zeolites
09.GD.10 Chabazite-K! (K2,Ca,Na2,Mg)[Al2Si4O12]•6(H2O) R 3m 3 2/m
09.GD.10 Chabazite-Ca (Ca0.5,Na,K)4[Al4Si8O24]•12H2O P1 1
09.GD.10 Chabazite-Na! (Na2,K2,Ca,Mg)[Al2Si4O12]•6(H2O) R 3m 3 2/m
09.GD.10 Herschelite? (Na,Ca,K)AlSi2O6•3(H2O) R 3m 3 2/m
09.GD.10 Chabazite-Sr! (Sr,Ca,K2,Na2)[Al2Si4O12]•6(H2O) R 3m 3 2/m
09.GD.10 Willhendersonite KCaAl3Si3O12•5(H2O) P1 1

Other Chabazite-Sr Information

Help on References: References: NAME( AmMin, v 86, p 939) PHYS. PROP.(AmMin, v 86, p 939) OPTIC PROP.(AmMin, v 86, p939)
Help on See Also: See Also: Links to other databases for Chabazite-Sr :
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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Dana No: Strunz No: 09.GD.10





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