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Chabazite-Mg

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Formula:
(Mg0.7K0.5Ca0.5Na0.1)[Al3Si9O24]·10H2O
Colour:
Colourless
Lustre:
Vitreous
Hardness:
4
Specific Gravity:
1.98
Crystal System:
Trigonal
Name:
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.


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Classification of Chabazite-MgHide

Approved
9.GD.10

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

Physical Properties of Chabazite-MgHide

Vitreous
Transparency:
Transparent
Comment:
Strong
Colour:
Colourless
Streak:
White
Hardness:
Tenacity:
Very brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
1.98(1) g/cm3 (Measured)    1.964(7) g/cm3 (Calculated)

Optical Data of Chabazite-MgHide

Type:
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:
Moderate
Pleochroism:
Non-pleochroic

Chemical Properties of Chabazite-MgHide

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

Crystallography of Chabazite-MgHide

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Setting:
R3m
Cell Parameters:
a = 9.3433(5) Å
α = 94.894(4)°
Unit Cell V:
806.17 ų
Morphology:
Rhombohedral crystals dominated by {1011} faces. Aggregates of intergrown crystals.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.306 (60)
5.537 (37)
4.958 (25)
4.315 (100)
2.924 (78)
2.869 (41)
Comments:
Sample from the type locality.

Type Occurrence of Chabazite-MgHide

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:

Synonyms of Chabazite-MgHide

Other Language Names for Chabazite-MgHide

Spanish:Chabasita-Mg

Relationship of Chabazite-Mg to other SpeciesHide

Other Members of this group:
Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2OTric. 1 : P1
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] · 6H2OTrig. 3m (3 2/m) : R3m
Lévyne-Na(Na2,Ca,K2)[Al2Si4O12] · 6H2OTrig.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Saponite2 photos of Chabazite-Mg associated with Saponite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.GD.05Gmelinite-CaCa2(Si8Al4O24] · 11H2OHex.
9.GD.05Gmelinite-KK4(Si8Al4O24) · 11H2OHex.
9.GD.05Gmelinite-NaNa4(Si8Al4O24] · 11H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
9.GD.10WillhendersoniteKCa[Al3Si3O12] · 5H2OTric.
9.GD.10Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2OTric. 1 : P1
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] · 6H2OTrig. 3m (3 2/m) : R3m
9.GD.15Lévyne-Na(Na2,Ca,K2)[Al2Si4O12] · 6H2OTrig.
9.GD.20Bellbergite(K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2OHex.
9.GD.20Erionite-Ca(Ca,K2,Na2)2[Al4Si14O36] · 15H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
9.GD.20Erionite-K(K2,Ca,Na2)2[Al4Si14O36] · 15H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
9.GD.20Erionite-Na(Na2,K2,Ca)2[Al4Si14O36] · 15H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
9.GD.25OffretiteKCaMg(Si13Al5)O36 · 15H2OHex. 6 m2 : P6m2
9.GD.25Wenkite(Ba,K)4(Ca,Na)6[(SO4)3|(Si,Al)20O39(OH)2] · 0.5H2OHex.
9.GD.30Faujasite-Ca(Ca,Na2,Mg)3.5[Al7Si17O48] · 32H2OIso.
9.GD.30Faujasite-Mg(Mg,Na2,Ca)3.5[Al7Si17O48] · 32H2OIso.
9.GD.30Faujasite-Na(Na2,Ca,Mg)3.5[Al7Si17O48] · 32H2OIso.
9.GD.35MaricopaitePb7Ca2(Si,Al)48O100 · 32H2OOrth.
9.GD.35Mordenite(Na2,Ca,K2)Al2Si10O24 · 7H2OOrth.
9.GD.40Dachiardite-Ca(Ca,Na2,K2)5Al10Si38O96 · 25H2OMon.
9.GD.40Dachiardite-Na(Na2,Ca,K2)5Al10Si38O96 · 25H2OMon.
9.GD.45EpistilbiteCaAl2Si6O16 · 5H2OMon.
9.GD.50Ferrierite-K(K2,Na2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2OOrth.
9.GD.50Ferrierite-Mg(Mg,Na2,K2,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2OOrth.
9.GD.50Ferrierite-Na(Na2,K2,Mg,Ca)3-5Mg[Al5-7Si27.5-31O72] · 18H2OMon. 2/m
9.GD.55BikitaiteLiAlSi2O6 · H2OTric. 1 : P1

Fluorescence of Chabazite-MgHide

Non-fluorescent.

Other InformationHide

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-MgHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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-MgHide

Localities for Chabazite-MgHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
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).
UK
 
  • Northern Ireland
    • Co. Antrim
Ryback, G., Nawaz, R. and Farley, E. (1988) Seventh Supplementary List of British Isles Minerals (Irish). Mineralogical Magazine, vol. 52, n° 365, pp. 267-274.
Mineral and/or Locality  
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