Florkeite Mineral Data

General Florkeite Information

Chemical Formula:

(K3Ca2Na)[Al8Si8O32]•12H2O

Composition:

Molecular Weight = 1,389.14 gm

Potassium 8.44 % K 10.17 % K₂O

Sodium 1.65 % Na 2.23 % Na₂O

Calcium 5.77 % Ca 8.07 % CaO

Aluminum 15.54 % Al 29.36 % Al₂O₃

Silicon 16.17 % Si 34.60 % SiO₂

Hydrogen 1.74 % H 15.56 % H₂O

Oxygen 50.68 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

K₃Ca₂NaAl₈Si₈O₃₂•12(H₂O)

Environment:

Zeolite group

IMA Status:

Proposed IMA 2008

Locality:

Bellerberg volcano, east of Ettringen, eastern Eifel volcanic area, Germany Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

Synonym:

IMA2008-036

Search for Florkeite Images

Images:

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Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Florkeite Crystallography

Axial Ratios:

a:b:c =1.3989:1:0.6099

Cell Dimensions:

a = 19.965, b = 14.271, c = 8.704, alpha = 88.37°, beta = 125.08°, gamma = 89.57° V = 2,028.59

Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.235(1), 3.135(0.8), 3.162(0.8),2.736(0.6), 4.965(0.45), 2.665(0.4), 2.712(0.4), 4.065(0.35),

Optical Properties of Florkeite

Optical Data:

Calculated Properties of Florkeite

Fermion Index:

Fermion Index = 0.007887294
Boson Index = 0.992112706

Photoelectric:

PE_Florkeite= 2.67 barns/electron
U=PE_Florkeite x r_electron= . barns/cc.

Radioactivity:

GRapi = 122.76 (Gamma Ray American Petroleum Institute Units)
Concentration of Florkeite per GRapi unit = 0.81 (%)

Estimated Radioactivity from Florkeite - barely detectable

Florkeite Classification

Dana Class:

75.00.00.00 (75)Tektosilicate Minerals

(75.00)Without Dana Classification Numbers

(75.00.00)Silicate, Unclassified

75.00.00.00 Alflarsenite NaCa2Be3Si4O13(OH)•2H2O P 2₁ 2

75.00.00.00 Florkeite (K3Ca2Na)[Al8Si8O32]•12H2O P1 1

75.00.00.00 Lechatelierite* SiO2 None

Strunz Class:

09.CG.10 09 - SILICATES (Germanates)

09.C - Cyclosilicates

09.CG -[Si4O12]8- Branched 4-membered single rings

09.CG.10 Florkeite (K3Ca2Na)[Al8Si8O32]•12H2O P1 1

Other Florkeite Information

See Also:

Links to other databases for Florkeite :
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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Ask about Florkeite here :
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Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Florkeite

(K3Ca2Na)[Al8Si8O32]•12H2O
Dana No: 75.00.00.00 Strunz No: 09.CG.10
Locality:

Notes: