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:
Shaft 254 (Streuberg Dump), Bergen, Bergen U Deposit, Zobes-Bergen District, Vogtland, Saxony, Germany

Oldest recorded age at locality: 327
Youngest recorded age at locality: 313

mindat Locality ID: 211839
mindat URL: http://www.mindat.org/loc-211839.html

Tectonic Settings:

Total number of sublocalities beneath "Shaft 254 (Streuberg Dump), Bergen, Bergen U Deposit, Zobes-Bergen District, Vogtland, Saxony, Germany": 0
Total number of bottom-level sublocalities: 0

Latitude: 50°28'1"N
Longitude: 12°14'50"E
Decimal Degree (lat, lon): 50.466944444444,12.247222222222
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: Ba Bi C Ca Fe H O P S Si U 

Elements from minerals reported directly at this locality: Ba Bi C Ca Fe H O P S Si U 

Structural Groups for minerals in this locality: 
BaryteBismutiteCorundumFluoriteNonePhosphuranyliteQuartz

7 IMA Minerals at location:
Baryte  (*)Bergenite  (*)Bismutite  (*)Hematite  (*)Quartz  (*)
Uraninite  (*)Uranocircite-II  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Baryte  (*)BaryteBa(SO4)327313011547
Bergenite  (*)PhosphuranyliteCa2Ba4(UO2)9O6(PO4)6·16H2O32731309
Bismutite  (*)BismutiteBi2O2(CO3)3273130716
Hematite  (*)CorundumFe2O3327313014640
Quartz  (*)QuartzSiO2327313061156
Uraninite  (*)FluoriteUO232731302718
Uranocircite-II  (*)NoneBa(UO2)2(PO4)2·10H2O327313089


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Giersdorf_00000647Tirpersdorf is an old Uranium prospect that delves into the Bergen Massif. The town of Tirpersdorf is located approximately 4 km SSW of the town of Bergen, the namesake of the granite body found in the area. The Bergen Massif is one of many Variscan granite bodies found in the Erzgebirge area in the eastern part of Germany on the border with the Czech Republic.


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
Giersdorf_00000647327313320±7U-Th-PbAge window of the samples on this paper fit into the range of 315-325 Ma, supporting a magmatic origin for the uraninite in the granite bodies as suggested by textural relationships. The uraninite grains studied are expressed to have had little alterationuraninite  YesUraniniteUraninite 16022Tirpersdorf, Oelsnitz, Vogtland, Saxony, GermanyBergen MassifFörster (1999)10.1180/002646199548466MM63_239Chemically derived uraninite ages for the Bergen granite

SampleSource LocalityReference URL

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