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:
Gerstenegg, Grimsel Area, Hasli Valley, Bern, Switzerland

Oldest recorded age at locality: 3.36
Youngest recorded age at locality: 3.24

mindat Locality ID: 193372
mindat URL: http://www.mindat.org/loc-193372.html

Tectonic Settings:

Total number of sublocalities beneath "Gerstenegg, Grimsel Area, Hasli Valley, Bern, Switzerland": 5
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Gerstenegg-Grimsel Cable Tunnel
Gerstenegg-Sommerloch Tunnel
NAGRA Laboratory
Sommerloch

Latitude: 46°34'41"N
Longitude: 8°19'22"E
Decimal Degree (lat, lon): 46.578055555556,8.3227777777778

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 Be C Ca Ce F Fe H K Mg Na Nb O P Pb S Si Th Ti U Y 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AeschyniteCalciteFluoriteMilariteMonaziteNonePyriteQuartzRocksalt

14 IMA Minerals at location:
Aeschynite-(Y)  (*)Bayleyite  (*)Baylissite  (*)Calcite  (*)Dolomite  (*)
Fluorite  (*)Galena  (*)Grimselite  (*)Milarite  (*)Monazite-(Ce)  (*)
Monohydrocalcite  (*)Pyrite  (*)Quartz  (*)Schröckingerite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Aeschynite-(Y)  (*)Aeschynite(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)63.363.241113443141
Bayleyite  (*)NoneMg2(UO2)(CO3)3·18H2O3.363.242113443,11344538
Baylissite  (*)NoneK2Mg(CO3)2·4H2O3.363.2411134452
Calcite  (*)CalciteCa(CO3)3.363.24111344427770
Dolomite  (*)NoneCaMg(CO3)23.363.2411134439895
Fluorite  (*)FluoriteCaF23.363.242113444,1134479617
Galena  (*)RocksaltPbS3.363.24111344424243
Grimselite  (*)NoneK3Na(UO2)(CO3)3·H2O3.363.242113445,1134464
Milarite  (*)MilariteKCa2(Be2AlSi12)O30·H2O3.363.241113444156
Monazite-(Ce)  (*)MonaziteCe(PO4)3.363.241113445945
Monohydrocalcite  (*)NoneCa(CO3)·H2O3.363.24111344555
Pyrite  (*)PyriteFeS23.363.24111344439462
Quartz  (*)QuartzSiO23.363.242113444,11344761156
Schröckingerite  (*)NoneNaCa3(UO2)(SO4)(CO3)3F·10H2O3.363.242113445,113446128



Locality Notes from all Ages at Locality:
Age IDLocality Notes
Michelle_507Baylissite occurs as a recent secondary mineral in alpine fissures of the Gerstenegg-Sommerloch tunnel in the Grimsel Pass area of the Aar Massif. Pliocene hydrothermal breccia mineralization in the Grimsel area demonstrates that meteoric waters penetrated deep into the Aar massif. The tunnels are utilized by utility companies.


1 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
Michelle_5073.363.243.30±0.06Ar-ArAge of hydrothermal alterationadularia  Yes  22954Grimsel Pass, Grimsel Area, Hasli Valley, Bern, SwitzerlandGrimsel PassHofmann et al. (2004) SMPM84_271Age of hydrothermal alteration.


SampleSource LocalityReference URL


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