Paulingite-Na Mineral Data

Paulingite-Na Mineral Data +

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General Paulingite-Na Information

Chemical Formula:

(Na2,K2,Ca,Ba)5Al10Si35O90·45(H2O)

Composition:

Molecular Weight = 3,756.91 gm

Potassium 1.67 % K 2.01 % K₂O

Barium 0.37 % Ba 0.41 % BaO

Sodium 1.84 % Na 2.47 % Na₂O

Calcium 2.88 % Ca 4.03 % CaO

Aluminum 7.18 % Al 13.57 % Al₂O₃

Silicon 26.16 % Si 55.98 % SiO₂

Hydrogen 2.41 % H 21.58 % H₂O

Oxygen 57.49 % O

______ ______

100.00 % 100.04 % = TOTAL OXIDE

Empirical Formula:

K_1.6Ca_2.7Na₃Ba_0.1Si₃₅Al₁₀O₉₀·45(H₂O)

Environment:

Occurs in tholeiitic basalt and sandstone xenoliths in basalt.

IMA Status:

Approved IMA 1998 (Dana # Added)

Locality:

Rock Island Dam, on the Columbia River, Wenatchee, Douglas Co., WA, USA. Link to MinDat.org Location Data.

Name Origin:

Named after Linus Carl Pauling (1901-1994), professor of chemistry, California Institute of Technology, Pasadena, CA, USA. Named as the Na-dominant member ot the paulingite series.

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Paulingite-Na Crystallography

Cell Dimensions:

a = 35.08, Z = 16; V = 43,169.68 Den(Calc)= 2.31

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: Im3m

Physical Properties of Paulingite-Na

Cleavage:

None

Color:

Colorless, Light yellow, Orange, Red.

Density:

2.085 - 2.24, Average = 2.16

Fracture:

Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).

Habit:

Euhedral Crystals - Occurs as well-formed crystals showing good external form.

Hardness:

5 - Apatite

Luster:

Vitreous - Greasy

Streak:

white

Optical Properties of Paulingite-Na

Gladstone-Dale:

CI meas= 0.061 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.121 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2069,KPDmeas= 0.221,KC= 0.2355

Optical Data:

Isotropic, n=1.472-1.484.

Calculated Properties of Paulingite-Na

Electron Density:

r_electron=2.20 gm/cc
note: r_{Paulingite-Na}=2.16 gm/cc.

Fermion Index

Fermion Index = 0.01319
Boson Index = 0.98681

Photoelectric:

PE_{Paulingite-Na}= 3.24 barns/electron
U=PE_{Paulingite-Na} x r_electron= 7.14 barns/cc.

Radioactivity:

GRapi = 24.49 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Paulingite-Na - barely detectable

Paulingite-Na Classification

Dana Class:

77.1.3.9a (77)Tectosilicate Zeolite group

(77.1)true zeolites

(77.1.3)Gismondine and related species

77.1.3.1 Gismondine Ca2Al4Si4O16·9(H2O) P 2₁/c 2/m

77.1.3.2 Amicite K2Na2Al4Si4O16·5(H2O) I2 2

77.1.3.3 Garronite Na2Ca5Al12Si20O64·27(H2O) I 4₁/a 4/m

77.1.3.4 Gobbinsite (Na2,Ca)2K2Al6Si10O32·12(H2O) P mn2₁ mm2

77.1.3.5 Harmotome (Ba,Na,K)1-2(Si,Al)8O16·6(H2O) P 2₁/m 2/m

77.1.3.6 Phillipsite-Na (Na,K,Ca)1-2(Si,Al)8O16·6(H2O) P 2₁/m 2/m

77.1.3.6a Phillipsite-Ca! (Ca,K,Na)1-2(Si,Al)8O16·6(H2O) P 2₁/m 2/m

77.1.3.6b Phillipsite-K! (K,Na,Ca)1-2(Si,Al)8O16·6(H2O) P 2₁/m 2/m

77.1.3.8 Perlialite K8Tl4Al12Si24O72·20(H2O) P 6/mmm 6/m 2/m 2/m

77.1.3.9 Paulingite-K (K2,Ca,Na2,Ba)5Al10Si35O90·45(H2O) Im3m 4/m 3 2/m

77.1.3.9a Paulingite-Na ! (Na2,K2,Ca,Ba)5Al10Si35O90·45(H2O) Im3m 4/m 3 2/m

77.1.3.9b Paulingite-Ca! (Ca,K,Na,Ba)5[Al10Si35O84]·34(H2O) Im3m 4/m 3 2/m

77.1.3.10 Mazzite K2CaMg2(Al,Si)36O72·28(H2O) P 6₃/mmc 6/m 2/m 2/m

77.1.3.11 Merlinoite (K,Ca,Na,Ba)7Si23Al9O64·23(H2O) I mmm 2/m 2/m 2/m

77.1.3.12 Montesommaite (K,Na)9Al9Si23O64·10(H2O) F dd2 mm2

Strunz Class:

VIII/JX.00-00 VIII - Silicates

VIII/JX - Unclassified Strunz Tectosilicates

VIII/JX.00 - Zeolite

Other Paulingite-Na Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Paulingite-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

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

Paulingite-Na

(Na2,K2,Ca,Ba)5Al10Si35O90·45(H2O)
Dana No: 77.1.3.9a Strunz No: VIII/JX.00-00
Locality:

Notes: