Paulingite-K Mineral Data

[Content and History] [Recent Issues] [Back Issues] [Subscriptions] [Contacts]
See Also: [Diamond Crystals] [Excalibur Minerals] [Hudson Institute] [Minerals on CDROM]
Mineral News was founded some twenty years ago and has developed a following of
avid mineral collectors seeking timely information about new finds and other items
of interest to the collector community. Articles are solicited from collector and scientific authors.

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 - 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),

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 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Paulingite-K using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Paulingite-K :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Paulingite-K Mineral Data :

Ask about Paulingite-K here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Paulingite-K

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

Notes: