Paulingite-Ca Mineral Data

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General Paulingite-Ca Information

Chemical Formula:

(Ca,K,Na,Ba)5[Al10Si35O84]•34(H2O)

Composition:

Molecular Weight = 3,410.06 gm

Potassium 3.06 % K 3.69 % K₂O

Barium 0.40 % Ba 0.45 % BaO

Sodium 0.58 % Na 0.78 % Na₂O

Calcium 4.35 % Ca 6.08 % CaO

Aluminum 8.53 % Al 16.12 % Al₂O₃

Silicon 25.70 % Si 54.99 % SiO₂

Hydrogen 2.01 % H 17.96 % H₂O

Oxygen 55.36 % O

______ ______

100.00 % 100.07 % = TOTAL OXIDE

Empirical Formula:

Ca_3.7K_2.67Na_0.86Ba_0.1Al_10.78Si_31.21O₈₄•34(H₂O)

Environment:

Occurs in tholeiitic basalt and sandstone xenoliths in basalt.

IMA Status:

Approved IMA 1998 (Dana # Added)

Locality:

Ritter, Oregon, U.S.A. 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.

Name Pronunciation:

Paulingite-Ca + Pronunciation

Paulingite-Ca Image

Images:

Paulingite-Ca

Comments: Small cubes of druzy paulingite-Ca on basalt.
Location: Three Mile Creek, Ritter, Grant County, Oregon, USA. Scale: Specimen Size 2x2.5 cm.
© Diederik Visser

Paulingite-Ca Crystallography

Cell Dimensions:

a = 35.088, Z = 16; V = 43,199.22 Den(Calc)= 2.10

Crystal System:

Isometric - HexoctahedralH-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),

Crystal Structure:

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Lengauer C L , Giester G , Tillmanns E , Mineralogical Magazine , 61 (1997) p.591-606, Mineralogical characterization of paulingite from Vinaricka Hora, Czech Republic, Locality: Vinaricka Hora, Czech Republic

Physical Properties of Paulingite-Ca

Color:

Colorless.

Density:

2.085

Diaphaneity:

Transparent

Hardness:

5 - Apatite

Luster:

Vitreous (Glassy)

Optical Properties of Paulingite-Ca

Gladstone-Dale:

CI meas= 0.008 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.015 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2274,KPDmeas= 0.229,KC= 0.2309
Ncalc = 1.48

Optical Data:

Isotropic, n=1.473-1.482.

Calculated Properties of Paulingite-Ca

Electron Density:

Bulk Density (Electron Density)=2.11 gm/cc
note: Specific Gravity of Paulingite-Ca =2.09 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_{Paulingite-Ca}= 3.71 barns/electron
U=PE_{Paulingite-Ca} x r_electron= 7.83 barns/cc.

Radioactivity:

GRapi = 44.81 (Gamma Ray American Petroleum Institute Units)
Concentration of Paulingite-Ca per GRapi unit = 2.23 (%)

Estimated Radioactivity from Paulingite-Ca - barely detectable

Paulingite-Ca Classification

Dana Class:

77.01.03.09b (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-Ca Information

References:

NAME( CanMin, 8/99) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Paulingite-Ca :
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-Ca

(Ca,K,Na,Ba)5[Al10Si35O84]•34(H2O)
Dana No: 77.01.03.09b Strunz No: 09.GC.35
Locality:

Notes: