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Mazzite-Na (Mazzit-Na)

Collectors Summary

Color farblos bis weiß
Streak color weiß
Lustre Glasglanz bis Seidenglanz
Cleavages keine
Crystal System hexagonal, P63/mmc

Chemism

Chemical formula

Na8(Si28Al8)O72·30H2O

Additional chem. information

Zeolith - Gruppe

Chemical composition

Aluminium, Natrium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 2878.5839872 u; Number of atoms in the formula: 206

Info

Empirical formula:

Na8(Si28Al8)O72·30H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

2.10

60

29.13

1.0079470

60.4768200
Oxygen

O

56.69

102

49.51

15.9994300

1,631.9418600
Sodium

Na

6.39

8

3.88

22.9897702

183.9181616
Aluminium

Al

7.50

8

3.88

26.9815382

215.8523056
Silicon

Si

27.32

28

13.59

28.0855300

786.3948400

Analysis wt%

SiO2 : 57.65, Al2O3 : 14.35, Fe2O3 : 0.65, Na2O : 8.07, H2O : 18.70 (Ref: American Mineralogist 2005)

Strunz 9th edition incl. updates

9.GC.20

9: Silikate (Germanate)
G: Gerüstsilikate (Tektosilikate) mit zeolithischem H2O; Familie der Zeolithe
C: Ketten doppelt verbundener vierer-Ringe
20:

Lapis Classification

VIII/J.26-085

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
26: Zeolith-Gruppe; Würfelzeolithe

Classification by Hölzel

9.FK.205

9: SILICATES
F: Tektosilicates
K: Doubly connected 4-Ring Chains

IMA status

anerkannt 2003

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Zeolite group  ⇒ MAZ zeolite structure group

Optical Properties

Color

farblos bis weiß

Streak color

weiß

Lustre

Glasglanz bis Seidenglanz

max. Birefringence

0.001
Birefringence chart\! Mazzite-Na title=Birefringence chart Mazzite-Na

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.471

RI value γ / ε

1.472

Ri mean

1.471

2V angle

Uniaxial (+)

Crystallography

Crystal System

hexagonal

Class (H-M)

6/mmm

Space Group number

194

Space Group

P63/mmc

Cell parameters a (Å)

18.234

Cell parameters b (Å)

-

Cell parameters c (Å)

7.637

Cell parameters a/b or c/a

0.419

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

1

Volumne (ų)

2198.96

X-Ray Powder Diffraction

9.08(100), 6.86(70), 5.95(70), 4.68(40), 3.79(80), 3.51(40), 3.15(70)
XRD chart Mazzite-Na

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

2.16 (2.18 berechnet)

2.174 ( ρ calc. Mineralienatlas )

Cleavages

keine

Tenacity

flexibel

Radioactivity

keine bekannt

(Co-)Type locality

(Co-)Type locality

USA/Kalifornien (California)/Kern Co./Kramer District/Boron/Kramer Boratlagerstätte/U.S. Borax Mine/U.S. Borax Open Pit (Boron Pit, Rio Tinto Borax Mine)

Preface

Rareness

sehr selten

Author (Name, Year)

Arletti & Galli & Vezzalini & Wise, 2005

References

American Mineralogist 90 (2005), 1186

IMA group assignments

Other languages

German

Mazzit-Na

Spanish

Mazzita-Na

English

Mazzite-Na

French

Mazzite-Na

Russian

Маццит-Na

CNMNC (IMA)-Number

IMA 2003-058

CNMNC symbol

Symbol

Maz-Na

Locations with GPS information