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Tschortnerite Mineral Data

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General Tschortnerite Information

Help on Chemical  Formula: Chemical Formula: Ca4(Ca,Sr,K,Ba)3Cu3(OH)8[Si12Al12O48]•x(H2O), x>=20
Help on Composition: Composition: Molecular Weight = 2,445.93 gm
   Potassium   0.96 %  K     1.16 % K2O
   Barium      1.68 %  Ba    1.88 % BaO
   Strontium   4.30 %  Sr    5.08 % SrO
   Calcium     8.03 %  Ca   11.23 % CaO
   Aluminum   13.24 %  Al   25.01 % Al2O3
   Copper      7.79 %  Cu    8.78 % Cu2O
   Silicon    13.78 %  Si   29.48 % SiO2
   Hydrogen    1.81 %  H    16.20 % H2O
   Oxygen     48.41 %  O
             ______        ______ 
             100.00 %       98.82 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca4.9Sr1.2K0.6Ba0.3Cu3(OH)8Si12Al12O48�18(H2O)
Help on Environment: Environment: Ca-rich xenolith in leucite tephrite lava.
Help on IMA Status: IMA Status: Approved IMA 1997 (Dana # Added)
Help on Locality: Locality: Bellberg volcano near Mayen, in the Laacher See volcano area, Eifel, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Jochen Tschortner (1941-), mineral collector and finder of the mineral.
Help on Name Pronunciation: Name Pronunciation: Tschortnerite + Pronunciation Say TSCHORTNERITE
Help on Synonym: Synonym: IMA1995-051
 

Tschortnerite Image

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  Tschortnerite

Comments: Scanning electron micrograph of tschortnerite. (AmMin 83:608).
Location: Ca-rich xenolith at the Bellberg volcano near Mayen, Eifel, Germany. Scale: Scale Bar 20 µm.
© American Mineralogist

Tschortnerite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 31.62, Z = 16; V = 31,614.45 Den(Calc)= 2.06
Help on Crystal System: Crystal System: Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F m3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 18.34(1), 15.82(0.5), 9.69(0.05),
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Physical Properties of Tschortnerite

Help on Cleavage: Cleavage: None
Help on Color: Color: Light blue.
Help on Density: Density: 2.1
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: pale blue
 

Optical Properties of Tschortnerite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.07 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.091 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2447,KPDmeas= 0.24,KC= 0.2244
Ncalc = 1.46 - 1.47
Help on Optical Data: Optical Data: Isotropic, n=1.504.
 

Calculated Properties of Tschortnerite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.09 gm/cc
note: Specific Gravity of Tschortnerite =2.10 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PETschortnerite = 16.68 barns/electron
U=PETschortnerite x relectron= 34.90 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 13.81 (Gamma Ray American Petroleum Institute Units)
Concentration of Tschortnerite per GRapi unit = 7.24 (%)

Estimated Radioactivity from Tschortnerite - barely detectable

 

Tschortnerite Classification

Help on  Dana Class: Dana Class: 77.01.02.09 (77)Tectosilicate Zeolite group
  (77.01)true zeolites
  (77.01.02)Chabazite and related species
 
77.01.02.01 Chabazite-Ca (Ca0.5,Na,K)4[Al4Si8O24]•12H2O P1 1
 
77.01.02.01a Chabazite-Na! (Na2,K2,Ca,Mg)[Al2Si4O12]•6(H2O) R 3m 3 2/m
 
77.01.02.01b Chabazite-K! (K2,Ca,Na2,Mg)[Al2Si4O12]•6(H2O) R 3m 3 2/m
 
77.01.02.01c Chabazite-Sr! (Sr,Ca,K2,Na2)[Al2Si4O12]•6(H2O) R 3m 3 2/m
 
77.01.02.02 Herschelite? (Na,Ca,K)AlSi2O6•3(H2O) R 3m 3 2/m
 
77.01.02.03 Willhendersonite KCaAl3Si3O12•5(H2O) P1 1
 
77.01.02.04 Offretite (K2,Ca,Mg)2.5Al5Si13O36•15(H2O) P 6m2 6 m2
 
77.01.02.05 Erionite-Na (Na2,K2,Ca)2[Al4Si14O36]•15(H2O) P 63/mmc 6/m 2/m 2/m
 
77.01.02.05a Erionite-K! (K2,Ca,Na2)2[Al4Si14O36]•15(H2O) P 63/mmc 6/m 2/m 2/m
 
77.01.02.05b Erionite-Ca! (Ca,K2,Na2)2[Al4Si14O36]•15(H2O) P 63/mmc 6/m 2/m 2/m
 
77.01.02.06 Gmelinite-Na (Na2,Ca)Al2Si4O12•6(H2O) P 63/mmc 6/m 2/m 2/m
 
77.01.02.06a Gmelinite-Ca! (Ca,Na2)Al2Si4O12•6(H2O) P 63/mmc 6/m 2/m 2/m
 
77.01.02.06b Gmelinite-K! (K,Na,Ca)6(Al7Si17O48)•22(H2O) P 63/mmc 6/m 2/m 2/m
 
77.01.02.07 Faujasite-Na (Na2,Ca,Mg)3.5[Al7Si17O48]•32(H2O) F d3m 4/m 3 2/m
 
77.01.02.07a Faujasite-Ca! (Ca,Na2,Mg)3.5[Al7Si17O48]•32(H2O) F d3m 4/m 3 2/m
 
77.01.02.07b Faujasite-Mg! (Mg,Na2,Ca)3.5[Al7Si17O48]•32(H2O) F d3m 4/m 3 2/m
 
77.01.02.08 Levyne-Ca (Ca,Na2,K2)Al2Si4O12•6(H2O) R 3m 3 2/m
 
77.01.02.08a Levyne-Na! (Na2,Ca,K2)Al2Si4O12•6(H2O) R 3m 3 2/m
 
77.01.02.09 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.GF.40 09 - SILICATES (Germanates)
  09.G - Tektosilicates with Zeolitic H2O
  09.GF -Other Rare Zeolites
 
09.GF.40 Tschortnerite! Ca4(Ca,Sr,K,Ba)3Cu3(OH)8[Si12Al12O48]•x(H2O),x>=20 F m3m 4/m 3 2/m
 

Other Tschortnerite Information

Help on References: References: NAME( AmMin) PHYS. PROP.(Am.Min.,Vol.83,p607-617,1998) OPTIC PROP.(AmMin)
Help on See Also: See Also: Links to other databases for Tschortnerite :
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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Tschortnerite

Ca4(Ca,Sr,K,Ba)3Cu3(OH)8[Si12Al12O48]•x(H2O), x>=20
Dana No: 77.01.02.09 Strunz No: 09.GF.40
Locality:

 

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