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Chabazite-Mg

Collectors Summary

Color farblos, weiß
Streak color weiß
Lustre glasartig
Hardness (Mohs) 4
Cleavages keine
Fracture rauh
Crystal System trigonal, R3m

Chemism

Chem­ical formula

(Mg0.7K0.5Ca0.5Na0.1)[Al3Si9O24]·10H2O

Addi­tional chem. informa­tion

Mg-dominanter Chabasit

Chem­ical com­po­si­tion

Aluminium, Calcium, Magnesium, Natrium, Silicium, Kalium, Sauerstoff, Wasserstoff

Unit weight: 956.75481862 u; Number of atoms in the formula: 67.8

Info

Empirical formula:

(Mg0.7K0.5Ca0.5Na0.1)[Al3Si9O24]·10H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.11

20

29.50

1.0079470

20.1589400

Oxygen

O

56.86

34

50.15

15.9994300

543.9806200

Sodium

Na

0.24

0.1

0.15

22.9897702

2.2989770

Magnesium

Mg

1.78

0.7

1.03

24.3050600

17.0135420

Aluminium

Al

8.46

3

4.42

26.9815382

80.9446146

Silicon

Si

26.42

9

13.27

28.0855300

252.7697700

Potassium

K

2.04

0.5

0.74

39.0983100

19.5491550

Calcium

Ca

2.09

0.5

0.74

40.0784000

20.0392000

Anal­y­sis wt%

SiO2 : 56.00, Al2O3 : 16.90, MgO : 2.85, CaO : 2.80, K2O : 2.50, H2O : 18.30 (Ref: American Mineralogist 2010)

Strunz 9th edi­tion incl. updates

9.GD.10

9: Silikate (Germanate)
G: Gerüstsilikate (Tektosilikate) mit zeolithischem H2O; Familie der Zeolithe
D: Ketten von fünfer-Ringen
10:

Lapis Clas­sifica­tion

VIII/J.26-028

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

Clas­sifica­tion by Hölzel

9.FL.307

9: SILICATES
F: Tektosilicates
L: Zeolites with 6-Rings

IMA sta­tus

anerkannt, Neue Mineralien - IMA Web-Seite, Okt. 2009

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Zeolite group  ⇒ CHA zeolite structure group  ⇒ Chabazite series

Optical Properties

Color

farblos, weiß

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent, durchscheinend

Lus­tre

glasartig

max. Birefrin­gence

0.004

Birefringence chart\! Chabazite-Mg title=Birefringence chart Chabazite-Mg

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

1.465

RI value γ / ε

1.469

Ri mean

1.466

2V angle

Uniaxial (+)

Pleochro­ism

nicht beobachtet

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

trigonal

Class (H-M)

3

Space Group number

166

Space Group

R3m

Cell param­e­ters a (Å)

13.777

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

14.872

Cell param­e­ters a/b or c/a

1.079

Cell param­e­ters c/b

-

Z

3

Volumne (ų)

2444.609

Kristall struc­ture

Struktur ermittelt, siehe G. Montagna et al., 2010.

X-Ray Pow­der Diffrac­tion

9.306(60), 5.537(37), 4.958(25), 4.315(100), 3.856(20), 3.550(38), 2.924(78), 2.869(41)

XRD chart Chabazite-Mg

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

4

VHN (Hard­ness Vick­ers)

190 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

1.98(1) gemessen 1.964(7) ber.

1.95 ( ρ calc. Mineralienatlas )

Cleav­ages

keine

Frac­ture

rauh

Tenac­ity

quite spröde

(Co-)Type locality

(Co-)Type locality

Ungarn/Veszprém, Komitat/Sümeg, Kreis/Bazsi/Steinbruch Karikás (Prága)

Type mate­r­ial

Ungarisches Naturkundemuseum in Budapest, Abteilung für Mineralogie und Petrologie, Katalog Nr. Gyn./1742,1743
Herman Otto Museum, Miskolc, Ungarn, Katalog Nr. 2009.51.1

Par­a­ge­n­e­sis of type mate­r­ial

Saponit, Aragonit, Phillipsit. An der Typlokalität sitzt Chabasit-Mg immer auf einer blassgrünen bis blassbraunen, 1-2 mm starken Schicht von Saponit. Saponit kleidet alle Hohlräume in diesem Bereich des Steinbruches aus.

Preface

Gen­er­a­tion con­di­tions

hydrothermal, Umwandlung von Feldspat und vulkanischem Glas, in einem geschlossenen System mit Mg-reichen Lösungen

Author (Name, Year)

G. Montagna et al., 2010

References

G. Montagna, S. Bigi, P. Kónya, S. Szakáll, G. Vezzalini: Chabazite-Mg: a new natural zeolite of the chabazite series. American Mineralogist 95 (2010) S. 939-945.

IMA group assignments

Other languages

German

Chabasit-Mg

Spanish

Chabasita-Mg

English

Chabazite-Mg

Russian

Шабазит-Mg

CNMNC (IMA)-Number

IMA 2009-060

CNMNC symbol

Symbol

Cbz-Mg

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Chabasit-Mg
Google-Bilder-Suche - search for: Chabasit-Mg
Mineralienatlas.de (Forum) - search for: Chabasit-Mg

English pages

Mindat - search for: Chabazite-Mg
Webmineral - search for:Chabazite-Mg
Handbook-of-Mineralogy - search for: Chabazite-Mg
RRUFF - Raman, XRD and other mineral data - search for: Chabazite-Mg
RRUFF - References and PDF downloads - search for: Chabazite-Mg
American-Mineralogist-Crystal-Structure-Database - search for: Chabazite-Mg
Strahlen.org - search for: Chabazite-Mg

Russian pages

Webmineral.ru - search for: Шабазит-Mg

Mineral Dealer

German pages

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Crystal-Treasure.com - search for: Chabasit-Mg
Bosse - search for: Chabasit-Mg
Edelsteine Neuburg - Gundolf Fischer - search for: Chabasit-Mg

Locations with GPS information