Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Praz-Jean, Hérens Valley, Valais, Switzerland


mindat Locality ID: 191625
mindat URL: http://www.mindat.org/loc-191625.html

Tectonic Settings:

Total number of sublocalities beneath "Praz-Jean, Hérens Valley, Valais, Switzerland": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Comtesse Mine
Forêt Noire Mine (Upper Comtesse Mine)
La Barma Mine
Vieille Maison Mine

Latitude: 46°9'3"N
Longitude: 7°27'14"E
Decimal Degree (lat, lon): 46.150833333333,7.4538888888889
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al As Ba C Ca Cl Cu Fe H K Mg O Pb S Sb Si Ti Zn 

Elements from minerals reported directly at this locality: C H O Pb S 

Structural Groups for minerals in this locality: 
ApatiteAragoniteBaryteCalciteChalcopyriteChloriteClayCorundumCovelliteGypsum
MicaNickelineNoneNot in a structural groupPyriteQuartzRocksaltSphaleriteSulphurTetrahedrite

27 IMA Minerals at location:
Anatase  (*)Anglesite  (*)Ankerite  (*)Aurichalcite  (*)Baryte  (*)
Calcite  (*)Cerussite  (*)Chalcopyrite  (*)Clinochlore  (*)Covellite  (*)
Dolomite  (*)Galena  (*)Gypsum  (*)Hemimorphite  (*)Hydrozincite  (*)
Ilmenite  (*)Jamesonite  (*)Leadhillite  (*)Mimetite  (*)Muscovite  (*)
Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Smithsonite  (*)Sphalerite  (*)
Sulphur  (*)Tetrahedrite-(Zn)  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Anatase  (*)Not in a structural groupTiO211150972162
Anglesite  (*)BarytePb(SO4)2115097,1150992734
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)211150973092
Aurichalcite  (*)None(Zn,Cu)5(CO3)2(OH)61115097919
Baryte  (*)BaryteBa(SO4)111509911547
Calcite  (*)CalciteCa(CO3)111509927770
Cerussite  (*)AragonitePb(CO3)2115097,1150994979
Chalcopyrite  (*)ChalcopyriteCuFeS23115097,115098,11509927198
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)811150971756
Covellite  (*)CovelliteCuS11150974165
Dolomite  (*)NoneCaMg(CO3)211150999895
Galena  (*)RocksaltPbS4115097,115098,115099,11510024243
Gypsum  (*)GypsumCa(SO4)·2H2O2115097,1150996890
Hemimorphite  (*)Not in a structural groupZn4(Si2O7)(OH)2·H2O2115097,1150991689
Hydrozincite  (*)NoneZn5(CO3)2(OH)62115097,1150991066
Ilmenite  (*)CorundumFe2+Ti4+O311150995433
Jamesonite  (*)NonePb4FeSb6S141115097784
Leadhillite  (*)NonePb4(SO4)(CO3)2(OH)20265
Mimetite  (*)ApatitePb5(AsO4)3Cl11150991107
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2111509717380
Pyrite  (*)PyriteFeS22115097,11509939462
Pyrrhotite  (*)NickelineFe7S811150979056
Quartz  (*)QuartzSiO22115097,11509861156
Smithsonite  (*)CalciteZn(CO3)2115097,1150992473
Sphalerite  (*)SphaleriteZnS4115097,115098,115099,11510021482
Sulphur  (*)SulphurS11150972045
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S1311150975317


No ages have been assigned to this locality yet.
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All locality data graciously provided by mindat.org

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