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Faujasite-Mg

A valid IMA mineral species
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05812430017492849466411.jpg
Faujasite-Mg, etc.

Quarry II, Limberg Quarries, Sasbach am Kaiserstuhl, Emmendingen, Freiburg Region, Baden-Württemberg, Germany
05812430017492849466411.jpg
Faujasite-Mg, etc.

Quarry II, Limberg Quarries, Sasbach am Kaiserstuhl, Emmendingen, Freiburg Region, Baden-Württemberg, Germany
05812430017492849466411.jpg
Faujasite-Mg, etc.

Quarry II, Limberg Quarries, Sasbach am Kaiserstuhl, Emmendingen, Freiburg Region, Baden-Württemberg, Germany
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About Faujasite-MgHide

03539290017271928514707.jpg
Barthélemy Faujas de Saint-Fond
Formula:
(Mg,Na2,Ca)3.5[Al7Si17O48] · 32H2O
Lustre:
Vitreous
Hardness:
5
Crystal System:
Isometric
Name:
Named after Barthélemy Faujas de Saint-Fond (born in Montélimar on May 17th 1741; died on July 18th, 1819, in Saint-Fond), French geologist and writer on the origin of volcanoes. The Mg-dominant member of the faujasite series.
Zeolite Group.


Unique IdentifiersHide

Mindat ID:
6921
Long-form identifier:
mindat:1:1:6921:8

IMA Classification of Faujasite-MgHide

Classification of Faujasite-MgHide

Strunz-mindat (2026):
9.GD.30

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
Fau-MgIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of Faujasite-MgHide

Lustre:
Vitreous
Hardness:
5 on Mohs scale

Optical Data of Faujasite-MgHide

Type:
Isotropic

Chemistry of Faujasite-MgHide

Mindat Formula:
(Mg,Na2,Ca)3.5[Al7Si17O48] · 32H2O
Element Weights:
Element% weight
O61.071 %
Si22.781 %
Al9.012 %
Mg4.059 %
H3.078 %

Calculated from ideal end-member formula.
Elements listed:
Al, Ca, H, Mg, Na, O, Si - search for minerals with similar chemistry

Crystallography of Faujasite-MgHide

Crystal System:
Isometric
Class (H-M):
m3m(4/m32/m) - Hexoctahedral
Space Group:
Fd3m
Setting:
Fd3m
Twinning:
Twinned on (111)
Comment:
No a available?

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
22 : Hydration and low-? subsurface aqueous alteration (see also #23)

Type Occurrence of Faujasite-MgHide

Other Language Names for Faujasite-MgHide

Relationship of Faujasite-Mg to other SpeciesHide

Member of:
Faujasite Subgroup > Zeolite Group
Other Members of Faujasite Subgroup:
Faujasite-Ca(Ca,Na2,Mg)3.5[Al7Si17O48] · 32H2OIso. m3m(4/m32/m) : Fd3m
Faujasite-Na(Na2,Ca,Mg)3.5[Al7Si17O48] · 32H2OIso. m3m(4/m32/m) : Fd3m

Common AssociatesHide

Associations Based on Photo Data:
3 photos of Faujasite-Mg associated with 'Hyalite'SiO2 · nH2O

Related Minerals - Strunz-mindat GroupingHide

9.GD.05Gmelinite-CaCa2(Si8Al4)O24 · 11H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GD.05Gmelinite-KK4(Si8Al4O24) · 11H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GD.05Gmelinite-NaNa4(Si8Al4)O24 · 11H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GD.10Chabazite-Mg(Mg0.7K0.5Ca0.5Na0.1)[Al3Si9O24] · 10H2O Trig. 3m(32/m) : R3m
9.GD.10WillhendersoniteKCa[Al3Si3O12] · 5H2OTric. 1 : P1
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 · 12H2OTrig. 3m(32/m) : R3m
9.GD.10Chabazite-Na(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2OTrig. 3m : R3m
9.GD.10Chabazite-SrSr2[Al2Si4O12]2 · 12H2OTrig. 3m(32/m) : R3m
9.GD.15Lévyne-Ca(Ca,Na2,K2)[Al2Si4O12] · 6H2OTrig. 3m(32/m) : R3m
9.GD.15Lévyne-Na(Na2,Ca,K2)[Al2Si4O12] · 6H2OTrig. 3m(32/m) : R3m
9.GD.20Erionite-Ca(Ca,K2,Na2)2[Al4Si14O36] · 15H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GD.20Erionite-K(K2,Ca,Na2)2[Al4Si14O36] · 15H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GD.20Erionite-Na(Na2,K2,Ca)2[Al4Si14O36] · 15H2OHex. 6/mmm(6/m2/m2/m) : P63/mmc
9.GD.20Bellbergite(K,Ba,Sr)2Sr2Ca2(Ca,Na)4[Al3Si3O12]6 · 30H2OHex.
9.GD.25OffretiteKCaMg(Si13Al5)O36 · 15H2OHex. 6m2 : P6m2
9.GD.25Wenkite(Ba,K)4(Ca,Na)6[(Si,Al)20O39(OH)2](SO4)3 · 0.5H2OHex. 6m2 : P62m
9.GD.30Faujasite-Ca(Ca,Na2,Mg)3.5[Al7Si17O48] · 32H2OIso. m3m(4/m32/m) : Fd3m
9.GD.30Faujasite-Na(Na2,Ca,Mg)3.5[Al7Si17O48] · 32H2OIso. m3m(4/m32/m) : Fd3m
9.GD.35MaricopaitePb7Ca2(Si,Al)48O100 · 32H2OOrth.
9.GD.35Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2OOrth.
9.GD.40Dachiardite-KK4(Si20Al4O48) · 13H2OMon.
9.GD.40Dachiardite-Ca(Ca,Na2,K2)5Al10Si38O96 · 25H2OMon. 2/m : B2/m
9.GD.40Dachiardite-Na(Na2,Ca,K2)5Al10Si38O96 · 25H2OMon. 2/m : B2/m
9.GD.45EpistilbiteCaAl2Si6O16 · 5H2OMon.
9.GD.50Ferrierite-K(K,Na)5(Si31Al5)O72 · 18H2OOrth. mmm(2/m2/m2/m) : Immm
9.GD.50Ferrierite-Mg[Mg2(K,Na)2Ca0.5](Si29Al7)O72 · 18H2OOrth. mmm(2/m2/m2/m) : Pnnm
9.GD.50Ferrierite-Na(Na,K)5(Si31Al5)O72 · 18H2OMon. 2/m
9.GD.50Ferrierite-NH4(NH4,Mg0.5)5(Al5Si31O72) · 22H2OOrth. mmm(2/m2/m2/m) : Immm
9.GD.55BikitaiteLiAlSi2O6 · H2OTric. 1 : P1

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.

Internet Links for Faujasite-MgHide

References for Faujasite-MgHide

Localities for Faujasite-MgHide

Showing 2 localities.

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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Germany (TL)
 
  • Baden-Württemberg
    • Freiburg Region
      • Emmendingen
        • Sasbach am Kaiserstuhl
Witteborg (1932) +2 other references
Volker Betz collection and photo
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