Faujasite-Na Mineral Data

Faujasite-Na Mineral Data +

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General Faujasite-Na Information

Chemical Formula:

(Na2,Ca,Mg)3.5[Al7Si17O48]·32(H2O)

Composition:

Molecular Weight = 2,109.65 gm

Sodium 2.29 % Na 3.08 % Na₂O

Calcium 1.99 % Ca 2.79 % CaO

Magnesium 0.40 % Mg 0.67 % MgO

Aluminum 8.95 % Al 16.92 % Al₂O₃

Silicon 22.63 % Si 48.42 % SiO₂

Hydrogen 3.06 % H 27.33 % H₂O

Oxygen 60.67 % O

______ ______

100.00 % 99.20 % = TOTAL OXIDE

Empirical Formula:

3.5(Ca_0.3)3.5(Na_0.6)3.5(Mg_0.1)Al₇Si₁₇O₄₈·32(H₂O)

Environment:

Usually occurs in basaltic volcanics, metapyroxenite, also with augite in limburgite. Na modifier added by the zeolite nomenclature committee.

IMA Status:

Valid Species (Pre-IMA) 1842

Locality:

Sasback in the Kaiserstuhl, Baden, Germany. Link to MinDat.org Location Data.

Name Origin:

Named after Barthelemy Faujas de Saint Fond (1741-1819), French geologist and writer on the origin of volcanoes.

Synonym:

Faujasite

Faujasite-Na Image

Images:

Faujasite-Na

Comments: Intergrown crystals of faujasite coated with opal.
Location: Kaiserstuhl, Baden-Wurttemburg, Germany. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Faujasite-Na Crystallography

Cell Dimensions:

a = 24.7, Z = 8; V = 15,069.22 Den(Calc)= 1.86

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m

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

By Intensity(I/I_o): 3.76(1), 5.66(1), 14.3(1),

Physical Properties of Faujasite-Na

Cleavage:

[111] Perfect, [111] Perfect, [111] Perfect

Color:

Colorless, White, Pale brown.

Density:

1.923 - 1.94, Average = 1.93

Diaphaniety:

Transparent to translucent

Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Habit:

Crystalline - Coarse - Occurs as well-formed coarse sized crystals.

Hardness:

5 - Apatite

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Faujasite-Na

Gladstone-Dale:

CI meas= -0.018 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.057 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2554,KPDmeas= 0.2459,KC= 0.2417

Optical Data:

Isotropic, n=1.47-1.48.

Calculated Properties of Faujasite-Na

Electron Density:

r_electron=1.98 gm/cc
note: r_Faujasite-Na=1.93 gm/cc.

Fermion Index

Fermion Index = 0.01129
Boson Index = 0.98871

Photoelectric:

PE_Faujasite-Na= 1.49 barns/electron
U=PE_Faujasite-Na x r_electron= 2.94 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Faujasite-Na is Not Radioactive

Faujasite-Na Classification

Dana Class:

77.1.2.7 (77)Tectosilicate Zeolite group

(77.1)true zeolites

(77.1.2)Chabazite and related species

77.1.2.1 Chabazite-Ca (Ca0.5,Na,K)4[Al4Si8O24]·12H2O P1 1

77.1.2.1a Chabazite-Na! (Na2,K2,Ca,Mg)[Al2Si4O12]·6(H2O) R 3m 3 2/m

77.1.2.1b Chabazite-K! (K2,Ca,Na2,Mg)[Al2Si4O12]·6(H2O) R 3m 3 2/m

77.1.2.1c Chabazite-Sr! (Sr,Ca,K2,Na2)[Al2Si4O12]·6(H2O) R 3m 3 2/m

77.1.2.2 Herschelite? (Na,Ca,K)AlSi2O6·3(H2O) R 3m 3 2/m

77.1.2.3 Willhendersonite KCaAl3Si3O12·5(H2O) P1 1

77.1.2.4 Offretite (K2,Ca,Mg)2.5Al5Si13O36·15(H2O) P 6m2 6 m2

77.1.2.5 Erionite-Na (Na2,K2,Ca)2[Al4Si14O36]·15(H2O) P 6₃/mmc 6/m 2/m 2/m

77.1.2.5a Erionite-K! (K2,Ca,Na2)2[Al4Si14O36]·15(H2O) P 6₃/mmc 6/m 2/m 2/m

77.1.2.5b Erionite-Ca! (Ca,K2,Na2)2[Al4Si14O36]·15(H2O) P 6₃/mmc 6/m 2/m 2/m

77.1.2.6 Gmelinite-Na (Na2,Ca)Al2Si4O12·6(H2O) P 6₃/mmc 6/m 2/m 2/m

77.1.2.6a Gmelinite-Ca! (Ca,Na2)Al2Si4O12·6(H2O) P 6₃/mmc 6/m 2/m 2/m

77.1.2.6b Gmelinite-K! (K,Na,Ca)6(Al7Si17O48)·22(H2O) P 6₃/mmc 6/m 2/m 2/m

77.1.2.7 Faujasite-Na (Na2,Ca,Mg)3.5[Al7Si17O48]·32(H2O) F d3m 4/m 3 2/m

77.1.2.7a Faujasite-Ca! (Ca,Na2,Mg)3.5[Al7Si17O48]·32(H2O) F d3m 4/m 3 2/m

77.1.2.7b Faujasite-Mg! (Mg,Na2,Ca)3.5[Al7Si17O48]·32(H2O) F d3m 4/m 3 2/m

77.1.2.8 Levyne-Ca (Ca,Na2,K2)Al2Si4O12·6(H2O) R 3m 3 2/m

77.1.2.8a Levyne-Na! (Na2,Ca,K2)Al2Si4O12·6(H2O) R 3m 3 2/m

77.1.2.9 Tschortnerite! Ca4(Ca,Sr,K,Ba)3Cu3(OH)8[Si12Al12O48]·x(H2O),x>=20 F m3m 4/m 3 2/m

Strunz Class:

VIII/J.27-40 VIII - Silicates

VIII/J - Tectosilicates (network), with zeolite-structure, Bladed Zeolites

VIII/J.27 - Zeolite group, Analcime - Paulingite series

VIII/J.27-10 Analcime NaAlSi2O6·(H2O) P1 1

VIII/J.27-20 Pollucite (Cs,Na)2Al2Si4O12·(H2O) I a3d 4/m 3 2/m

VIII/J.27-30 Wairakite CaAl2Si4O12·2(H2O) I2/a 2/m

VIII/J.27-40 Faujasite-Na (Na2,Ca,Mg)3.5[Al7Si17O48]·32(H2O) F d3m 4/m 3 2/m

VIII/J.27-44 Faujasite-Mg! (Mg,Na2,Ca)3.5[Al7Si17O48]·32(H2O) F d3m 4/m 3 2/m

VIII/J.27-46 Faujasite-Ca! (Ca,Na2,Mg)3.5[Al7Si17O48]·32(H2O) F d3m 4/m 3 2/m

VIII/J.27-50 Paulingite-K (K2,Ca,Na2,Ba)5Al10Si35O90·45(H2O) Im3m 4/m 3 2/m

VIII/J.27-54 Paulingite-Ca! (Ca,K,Na,Ba)5[Al10Si35O84]·34(H2O) Im3m 4/m 3 2/m

Other Faujasite-Na Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Faujasite-Na :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

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Print or Cut-and-Paste your Faujasite-Na Specimen Label here :

Faujasite-Na

(Na2,Ca,Mg)3.5[Al7Si17O48]·32(H2O)
Dana No: 77.1.2.7 Strunz No: VIII/J.27-40
Locality:

Notes: