Paulingite-K Mineral Data

General Paulingite-K Information

Chemical Formula:

(K2,Ca,Na2,Ba)5Al10Si35O90•45(H2O)

Composition:

Molecular Weight = 3,601.72 gm

Potassium 4.82 % K 5.81 % K₂O

Barium 0.69 % Ba 0.77 % BaO

Sodium 0.61 % Na 0.82 % Na₂O

Calcium 2.09 % Ca 2.93 % CaO

Aluminum 7.36 % Al 13.90 % Al₂O₃

Silicon 25.12 % Si 53.73 % SiO₂

Hydrogen 2.46 % H 22.01 % H₂O

Oxygen 56.86 % O

______ ______

100.00 % 99.96 % = TOTAL OXIDE

Empirical Formula:

K_4.44Na_0.95Ca_1.88Ba_0.18Al_9.82Si_32.21O₈₄•44(H₂O)

Environment:

Occurs in tholeiitic basalt and sandstone xenoliths in basalt.

IMA Status:

Approved IMA 1960

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. K modifier added by zeolite nomenclature committee.

Name Pronunciation:

Paulingite-K + Pronunciation

Synonym:

Paulingite

Paulingite-K Image

Images:

Paulingite-K

Comments: Glassy clear micro crystals of paulingite line a vug in the basalt matrix.
Location: Ritter, Grant County, Oregon, USA. Scale: 2.5 x 2 cm.
© John Veevaert

Paulingite-K Crystallography

Cell Dimensions:

a = 35.08, Z = 16; V = 43,169.68 Den(Calc)= 2.22

Crystal System:

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

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

By Intensity(I/I_o): 3.0806(1), 8.2773(0.808), 3.2614(0.74),

Physical Properties of Paulingite-K

Cleavage:

None

Color:

Colorless, Light yellow, Orange, Red.

Density:

2.085 - 2.24, Average = 2.16

Diaphaneity:

Transparent

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-K

Gladstone-Dale:

CI meas= 0.061 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.085 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2153,KPDmeas= 0.221,KC= 0.2354
Ncalc = 1.49 - 1.53

Optical Data:

Isotropic, n=1.472-1.484.

Calculated Properties of Paulingite-K

Electron Density:

Bulk Density (Electron Density)=2.20 gm/cc
note: Specific Gravity of Paulingite-K =2.16 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Paulingite-K= 4.67 barns/electron
U=PE_Paulingite-K x r_electron= 10.28 barns/cc.

Radioactivity:

GRapi = 70.77 (Gamma Ray American Petroleum Institute Units)
Concentration of Paulingite-K per GRapi unit = 1.41 (%)

Estimated Radioactivity from Paulingite-K - barely detectable

Paulingite-K Classification

Dana Class:

77.01.03.09 (77)Tectosilicate Zeolite group

(77.01)true zeolites

(77.01.03)Gismondine and related species

77.01.03.01 Gismondine Ca2Al4Si4O16•9(H2O) P 2₁/c 2/m

77.01.03.02 Amicite K2Na2Al4Si4O16•5(H2O) I2 2

77.01.03.03 Garronite Na2Ca5Al12Si20O64•27(H2O) I 4₁/a 4/m

77.01.03.04 Gobbinsite (Na2,Ca)2K2Al6Si10O32•12(H2O) P mn2₁ mm2

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

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

77.01.03.06a Phillipsite-Ca! (Ca,K,Na)1-2(Si,Al)8O16•6(H2O) P 2₁/m 2/m

77.01.03.06b Phillipsite-K! (K,Na,Ca)1-2(Si,Al)8O16•6(H2O) P 2₁/m 2/m

77.01.03.08 Perlialite K8Tl4Al12Si24O72•20(H2O) P 6/mmm 6/m 2/m 2/m

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

77.01.03.09a Paulingite-Na! (Na2,K2,Ca,Ba)5Al10Si35O90•45(H2O) Im3m 4/m 3 2/m

77.01.03.09b Paulingite-Ca! (Ca,K,Na,Ba)5[Al10Si35O84]•34(H2O) Im3m 4/m 3 2/m

77.01.03.10 Mazzite-Mg K2CaMg2(Al,Si)36O72•28(H2O) P 6₃/mmc 6/m 2/m 2/m

77.01.03.10a Mazzite-Na! Na8Al8Si28O72•30H2O P 6₃/mmc 6/m 2/m 2/m

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

77.01.03.12 Montesommaite (K,Na)9Al9Si23O64•10(H2O) F dd2 mm2

Strunz Class:

09.GC.35 09 - SILICATES (Germanates)

09.G - Tektosilicates with Zeolitic H2O

09.GC -Chains of doubly-connected 4-membered rings

09.GC.35 Paulingite-Ca! (Ca,K,Na,Ba)5[Al10Si35O84]•34(H2O) Im3m 4/m 3 2/m

09.GC.35 Paulingite-K (K2,Ca,Na2,Ba)5Al10Si35O90•45(H2O) Im3m 4/m 3 2/m

09.GC.35 Paulingite-Na! (Na2,K2,Ca,Ba)5Al10Si35O90•45(H2O) Im3m 4/m 3 2/m

Other Paulingite-K Information

References:

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

See Also:

Links to other databases for Paulingite-K :
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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Paulingite-K

(K2,Ca,Na2,Ba)5Al10Si35O90•45(H2O)
Dana No: 77.01.03.09 Strunz No: 09.GC.35
Locality:

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