Levyne-Na Mineral Data

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General Levyne-Na Information

Chemical Formula:

(Na2,Ca,K2)Al2Si4O12•6(H2O)

Composition:

Molecular Weight = 1,540.68 gm

Potassium 0.96 % K 1.16 % K₂O

Sodium 5.73 % Na 7.72 % Na₂O

Calcium 2.32 % Ca 3.24 % CaO

Magnesium 0.13 % Mg 0.21 % MgO

Aluminum 11.09 % Al 20.95 % Al₂O₃

Silicon 21.35 % Si 45.67 % SiO₂

Hydrogen 2.36 % H 21.05 % H₂O

Oxygen 56.08 % O

______ ______

100.00 % 99.99 % = TOTAL OXIDE

Empirical Formula:

Na_3.84K_0.38Ca_0.89Mg_0.08Al_6.33Si_11.71O₃₆•18(H₂O)

Environment:

Alteration of basaltic rocks.

IMA Status:

Approved IMA 1997 (Dana # Added)

Locality:

Chojabaru, Nagasaki Prefecture, Japan. Link to MinDat.org Location Data.

Name Origin:

Named for Armand Levy (1794-1841), French mineralogist and crystallographer, Paris University, France. The Na-dominant member of the levyne series.

Name Pronunciation:

Levyne-Na

Synonym:

Echellite

Levynite

Levyne-Na Image

Images:

Levyne-Na

Comments: White tabular hexagonal-shaped levyne-Na crystals associated with analcime.
Location: Dallas, Oregon, USA. Scale: See Image.
© Rruff Database

Levyne-Na Crystallography

Axial Ratios:

a:c = 1:1.69536

Cell Dimensions:

a = 13.38, c = 22.684, Z = 3; V = 3,516.92 Den(Calc)= 2.18

Crystal System:

Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m

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

By Intensity(I/I_o): 4.1(1), 2.815(0.8), 8.19(0.65),

Physical Properties of Levyne-Na

Cleavage:

{1011} Perfect

Color:

White, Grayish white, Reddish white, Yellowish white, Gray.

Density:

2.09 - 2.16, Average = 2.12

Diaphaneity:

Transparent to Translucent

Habit:

Fibrous - Crystals made up of fibers.

Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Hardness:

4-4.5 - Between Fluorite and Apatite

Luster:

Vitreous (Glassy)

Magnetism:

Nonmagnetic

Streak:

white

Optical Properties of Levyne-Na

Gladstone-Dale:

CI meas= 0.001 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.026 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.228,KPDmeas= 0.2339,KC= 0.2341
Ncalc = 1.49 - 1.51

Optical Data:

Uniaxial (-), e=1.487-1.502, w=1.489-1.51, bire=0.0020-0.0080.

Calculated Properties of Levyne-Na

Electron Density:

Bulk Density (Electron Density)=2.16 gm/cc
note: Specific Gravity of Levyne-Na =2.13 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Levyne-Na= 1.66 barns/electron
U=PE_Levyne-Na x r_electron= 3.58 barns/cc.

Radioactivity:

GRapi = 14.12 (Gamma Ray American Petroleum Institute Units)
Concentration of Levyne-Na per GRapi unit = 7.08 (%)

Estimated Radioactivity from Levyne-Na - barely detectable

Levyne-Na Classification

Dana Class:

77.01.02.08a (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

Strunz Class:

09.GD.15 09 - SILICATES (Germanates)

09.G - Tektosilicates with Zeolitic H2O

09.GD -Chains of 6-membered rings – tabular zeolites

09.GD.15 Levyne-Ca (Ca,Na2,K2)Al2Si4O12•6(H2O) R 3m 3 2/m

09.GD.15 Levyne-Na! (Na2,Ca,K2)Al2Si4O12•6(H2O) R 3m 3 2/m

Other Levyne-Na Information

References:

NAME( Dana8) PHYS. PROP.(CanMin, v 35, p 1586) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Levyne-Na :
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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Print or Cut-and-Paste your Levyne-Na Specimen Label here :

Levyne-Na

(Na2,Ca,K2)Al2Si4O12•6(H2O)
Dana No: 77.01.02.08a Strunz No: 09.GD.15
Locality:

Notes: