Mazzite-Na Mineral Data

General Mazzite-Na Information

Chemical Formula:

Na8Al8Si28O72•30H2O

Composition:

Molecular Weight = 2,888.35 gm

Potassium 0.03 % K 0.03 % K₂O

Barium 0.14 % Ba 0.16 % BaO

Sodium 5.99 % Na 8.07 % Na₂O

Calcium 0.12 % Ca 0.17 % CaO

Magnesium 0.13 % Mg 0.22 % MgO

Aluminum 7.59 % Al 14.35 % Al₂O₃

Iron 0.46 % Fe 0.60 % FeO

Silicon 26.94 % Si 57.64 % SiO₂

Hydrogen 2.09 % H 18.70 % H₂O

Oxygen 56.49 % O

______ ______

100.00 % 99.95 % = TOTAL OXIDE

Empirical Formula:

Na_7.52K_0.02Mg_0.16Ca_0.09Ba_0.03Fe²⁺_0.24Al_8.13Si_27.71O₇₂·29.98(H₂O)

Environment:

Zeolite mineral species occurring in basalt at the bottom of the open pit of the U.S. Borax mine.

IMA Status:

Approved IMA 2003 (Dana # Added)

Locality:

Boron, California Link to MinDat.org Location Data.

Name Origin:

Named as the Na-dominat analogue of mazzite(-K).

Name Pronunciation:

Mazzite-Na

Synonym:

IMA2003-058

Mazzite-Na Image

Images:

Mazzite-Na

Comments: Silky mazzite-Na fibers filling a cavity in basalt.
Location: Open pit of the U.S. Borax mine at Boron, California. Scale: Specimen size 5 mm.
© American Mineralogist

Mazzite-Na Crystallography

Axial Ratios:

a:c = 1:0.41883

Cell Dimensions:

a = 18.2343, c = 7.6371, Z = 1; V = 2,199.06 Den(Calc)= 2.18

Crystal System:

Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 6₃/mmc

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

By Intensity(I/I_o): 9.08(1)(110), 3.787(0.8)(002), 3.15(0.7)(500),5.95(0.7)(210), 6.86(0.7)(101), 3.511(0.4)(112), 4.681(0.4)(211),

Crystal Structure:

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Arletti R , Galli E , Vezzalini G , Wise W S , American Mineralogist , 90 (2005) p.1186-1191, Mazzite-Na, a new zeolite from Boron, California:, Its description and crystal structure, Sample: US Borax Mine, Boron, Ca

Physical Properties of Mazzite-Na

Cleavage:

Unknown

Color:

Colorless, White.

Diaphaneity:

Opaque

Fracture:

Unknown - Minerals too small to observe fractures.

Habit:

Fibrous - Crystals made up of fibers.

Habit:

Silky - Very finely fiberous material like silk fibers

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Mazzite-Na

Gladstone-Dale:

CI calc= 0.063 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2163,KC= 0.2307
Ncalc = 1.5

Optical Data:

Uniaxial (+), w=1.471, e=1.472, bire=0.0010.

Calculated Properties of Mazzite-Na

Electron Density:

Bulk Density (Electron Density)=2.21 gm/cc
note: Specific Gravity of Mazzite-Na =2.18 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Mazzite-Na= 2.11 barns/electron
U=PE_Mazzite-Na x r_electron= 4.67 barns/cc.

Radioactivity:

GRapi = 0.39 (Gamma Ray American Petroleum Institute Units)
Concentration of Mazzite-Na per GRapi unit =258.92 (%)

Estimated Radioactivity from Mazzite-Na - barely detectable

Mazzite-Na Classification

Dana Class:

77.01.03.10a (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.20 09 - SILICATES (Germanates)

09.G - Tektosilicates with Zeolitic H2O

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

09.GC.20 Mazzite-Mg K2CaMg2(Al,Si)36O72•28(H2O) P 6₃/mmc 6/m 2/m 2/m

09.GC.20 Mazzite-Na! Na8Al8Si28O72•30H2O P 6₃/mmc 6/m 2/m 2/m

Other Mazzite-Na Information

References:

NAME( AmMin, v90, p 1186) PHYS. PROP.(AmMin, v90, p 1186) OPTIC PROP.(AmMin, v90, p 1186)

See Also:

Links to other databases for Mazzite-Na :
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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Print or Cut-and-Paste your Mazzite-Na Specimen Label here :

Mazzite-Na

Na8Al8Si28O72•30H2O
Dana No: 77.01.03.10a Strunz No: 09.GC.20
Locality:

Notes: