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:
Jirna, Stříbro, Tachov District, Plzeň Region, Czech Republic

Oldest recorded age at locality: 237
Youngest recorded age at locality: 170

mindat Locality ID: 232028
mindat URL: http://www.mindat.org/loc-232028.html

Tectonic Settings:

Total number of sublocalities beneath "Jirna, Stříbro, Tachov District, Plzeň Region, Czech Republic": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The 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.

Baryte	Calcite	Chalcopyrite	None	Pyrite	Quartz	Rocksalt	Sphalerite

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 C Ca Cu Fe Mg O Pb S Si Zn

Elements from minerals reported directly at this locality: Ba C Ca Cu Fe Mg O Pb S Si Zn

Structural Groups for minerals in this locality:
Baryte Calcite Chalcopyrite None Pyrite Quartz Rocksalt Sphalerite

9 IMA Minerals at location:

Ankerite ()*	Baryte ()*	Calcite ()*	Chalcopyrite ()*	Dolomite ()*
Galena ()*	Pyrite ()*	Quartz ()*	Sphalerite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	237	170	3092
Baryte ()*	Baryte	Ba(SO₄)	237	170	11547
Calcite ()*	Calcite	Ca(CO₃)	237	170	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	237	170	27198
Dolomite ()*	None	CaMg(CO₃)₂	237	170	9895
Galena ()*	Rocksalt	PbS	237	170	24243
Pyrite ()*	Pyrite	FeS₂	237	170	39462
Quartz ()*	Quartz	SiO₂	237	170	61156
Sphalerite ()*	Sphalerite	ZnS	237	170	21482

2 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Ni-00001	216	170	193	U-Th-Pb						Yes			Ni	18389	Stříbro, Tachov District, Plzeň Region, Czech Republic	Stříbro-Harrachov	Bielicki and Tischendorf (1991)	10.1007/BF00321987	CMP106_440
	Ni-00002	237	211	224	U-Pb						Yes			Ni	18389	Stříbro, Tachov District, Plzeň Region, Czech Republic	Stříbro-Harrachov	Bielicki and Tischendorf (1991)	10.1007/BF00321987	CMP106_440

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...