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Named in 1788 by Louis-Augustin Bosc d'Antic from the Greek chabazios, tune or melody, one of twenty stones named in the poem Peri lithos, which extolled the virtues of minerals. The poem is ascribed to Orpheus, legendary founder of the Orphic cult, which flourished in Greece in the early centuries. and its chemical composition.
The Magnesium-dominant member of the Chabazite series of the Zeolite Group.

Classification of Chabazite-Mg


9 : SILICATES (Germanates)
G : Tektosilicates with zeolitic H2O; zeolite family
D : Chains of 6-membered rings – tabular zeolites

Type Occurrence of Chabazite-Mg

General Appearance of Type Material:
Colourless rhombohedra up to 0.4 mm in size.
Place of Conservation of Type Material:
Herman Ottó Museum, Miskolc, Hungary (2009.51.1) and Hungarian Natural History Museum, Budapest, Hungary (Gyn/1742, 1743).
Geological Setting of Type Material:
In cavities of basalt.
Associated Minerals at Type Locality:

Physical Properties of Chabazite-Mg

Diaphaneity (Transparency):
Hardness (Mohs):
Very brittle
None Observed
1.98(1) g/cm3 (Measured)    1.964(7) g/cm3 (Calculated)

Crystallography of Chabazite-Mg

Crystal System:
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
Space Group Setting:
Cell Parameters:
a = 9.3433(5) Å
α = 94.894(4)°
Unit Cell Volume:
V 806.17 ų
Rhombohedral crystals dominated by {1011} faces. Aggregates of intergrown crystals.
X-Ray Powder Diffraction Data:
9.306 (60)
5.537 (37)
4.958 (25)
4.315 (100)
2.924 (78)
2.869 (41)
Sample from the type locality.

Optical Data of Chabazite-Mg

Uniaxial (+)
RI values:
nω = 1.465() nε = 1.469(5)
Max Birefringence:
δ = 0.004
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of Chabazite-Mg

All elements listed in formula:
Analytical Data:
Average of 17 electron-microprobe analyses; H2O from structural refinement. Sample from the type locality.
SiO2 (56.0)
Al2O3 (16.9)
Fe2O3 (0.02)
MgO (2.85)
K2O (2.5)
CaO (2.8)
Na2O (0.27)
SrO (0.3)
BaO (0.02)
H2O (18.30)
Empirical Formula:
(Mg0.67K0.52Ca0.48Na0.08Sr0.03)[Al3.16Si8.89O24] · 9.68H2O

Relationship of Chabazite-Mg to other Species

Other Members of Group:
Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Chabazite-SrSr2[Al2Si4O12]2 · 12H2O
Lévyne-Ca(Ca,Na2,K2)[Al2Si4O12] · 6H2O
Lévyne-Na(Na2,Ca,K2)[Al2Si4O12] · 6H2O
9.GD.05Gmelinite-CaCa2(Si8Al4O24] · 11H2O
9.GD.05Gmelinite-KK4(Si8Al4O24) · 11H2O
9.GD.05Gmelinite-NaNa4(Si8Al4O24] · 11H2O
9.GD.10WillhendersoniteKCa[Al3Si3O12] · 5H2O
9.GD.10Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
9.GD.10Chabazite-K(K2,Ca,Na2,Sr,Mg)2[Al2Si4O12]2 · 12H2O
9.GD.10Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
9.GD.10Chabazite-SrSr2[Al2Si4O12]2 · 12H2O
9.GD.15Lévyne-Ca(Ca,Na2,K2)[Al2Si4O12] · 6H2O
9.GD.15Lévyne-Na(Na2,Ca,K2)[Al2Si4O12] · 6H2O
9.GD.20Bellbergite(K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2O
9.GD.20Erionite-Ca(Ca,K2,Na2)2[Al4Si14O36] · 15H2O
9.GD.20Erionite-K(K2,Ca,Na2)2[Al4Si14O36] · 15H2O
9.GD.20Erionite-Na(Na2,K2,Ca)2[Al4Si14O36] · 15H2O
9.GD.25OffretiteKCaMg(Si13Al5)O36 · 15H2O
9.GD.25Wenkite(Ba,K)4(Ca,Na)6[(SO4)3|(Si,Al)20O39(OH)2] · 0.5H2O
9.GD.30Faujasite-Ca(Ca,Na2,Mg)3.5[Al7Si17O48] · 32H2O
9.GD.30Faujasite-Mg(Mg,Na2,Ca)3.5[Al7Si17O48] · 32H2O
9.GD.30Faujasite-Na(Na2,Ca,Mg)3.5[Al7Si17O48] · 32H2O
9.GD.35MaricopaitePb7Ca2(Si,Al)48O100 · 32H2O
9.GD.35Mordenite(Na2,Ca,K2)Al2Si10O24 · 7H2O
9.GD.40Dachiardite-Ca(Ca,Na2,K2)5Al10Si38O96 · 25H2O
9.GD.40Dachiardite-Na(Na2,Ca,K2)5Al10Si38O96 · 25H2O
9.GD.45EpistilbiteCaAl2Si6O16 · 5H2O
9.GD.50Ferrierite-K(K2,Na2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2O
9.GD.50Ferrierite-Mg(Mg,Na2,K2,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2O
9.GD.50Ferrierite-Na(Na2,K2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2O
9.GD.55BikitaiteLiAlSi2O6 · H2O

Other Names for Chabazite-Mg

Name in Other Languages:

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Chabazite-Mg

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

Internet Links for Chabazite-Mg URL:
Please feel free to link to this page.

Localities for Chabazite-Mg

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Hungary (TL)
  • Veszprém Co.
    • Balaton Uplands
      • Bazsi
        • Prága Hill
Vezzalini, G., Montagna, G., Bigi, S., Kxnya, P., Szakáll, S. (2010): Chabazite-Mg: A new natural zeolite of the chabazite series. American Mineralogist, 95, (in press).
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