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:
Obergruna, Freiberg, Mittelsachsen, Saxony, Germany

Oldest recorded age at locality: 461
Youngest recorded age at locality: 260

mindat Locality ID: 278774
mindat URL: http://www.mindat.org/loc-278774.html

Tectonic Settings:

Total number of sublocalities beneath "Obergruna, Freiberg, Mittelsachsen, Saxony, Germany": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Gesegnete Bergmannshoffnung Mine

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.

Acanthite	Arsenopyrite	Baryte	Calcite	Copper	None	Pyrite	Quartz	Rocksalt	Sphalerite
Xanthoconite

Acanthite ()*	Arsenopyrite ()*	Baryte ()*	Calcite ()*	Dolomite ()*
Galena ()*	Proustite ()*	Pyrargyrite ()*	Pyrite ()*	Quartz ()*
Siderite ()*	Silver ()*	Sphalerite ()*	Stephanite ()*	Xanthoconite ()*

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: Ag As Ba C Ca Fe Mg O Pb S Sb Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Arsenopyrite Baryte Calcite Copper None Pyrite Quartz Rocksalt Sphalerite
Xanthoconite

15 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Acanthite ()*	Acanthite	Ag₂S	310	260	1	62948	2793
Arsenopyrite ()*	Arsenopyrite	FeAsS	461	260	1	62948	9052
Baryte ()*	Baryte	Ba(SO₄)	461	260	1	62948	11547
Calcite ()*	Calcite	Ca(CO₃)	461	260	1	62948	27770
Dolomite ()*	None	CaMg(CO₃)₂	461	260	1	62948	9895
Galena ()*	Rocksalt	PbS	310	260	1	62948	24243
Proustite ()*	None	Ag₃AsS₃	310	260	1	62948	733
Pyrargyrite ()*	None	Ag₃SbS₃	310	260	1	62948	1425
Pyrite ()*	Pyrite	FeS₂	461	260	1	62948	39462
Quartz ()*	Quartz	SiO₂	310	260	1	62948	61156
Siderite ()*	Calcite	Fe(CO₃)	461	260	1	62948	6417
Silver ()*	Copper	Ag	310	260	1	62948	5186
Sphalerite ()*	Sphalerite	ZnS	310	260	1	62948	21482
Stephanite ()*	None	Ag₅SbS₄	310	260	1	62948	586
Xanthoconite ()*	Xanthoconite	Ag₃AsS₃	310	260	1	62948	89

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Age from other Locality	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
Alexandra-0427	310	260	310-260		Age of magmatic-hydrothermal mineralization	Yes	Quartz	Pb, Zn, Cu, Ag, Sn, Au	1832	Freiberg, Mittelsachsen, Saxony, Germany	Freiberg	Seifert (2008)		BOOK_MPLMEV_2008
Co-00069	319	289	304	U-Th-Pb		Yes		Co, Ni, Cu	1832	Freiberg, Mittelsachsen, Saxony, Germany	Freiberg	Bielicki and Tischendorf (1991)	10.1007/BF00321987	CMP106_440
Co-00070	461	433	447	U-Pb		Yes		Co, Ni, Cu	1832	Freiberg, Mittelsachsen, Saxony, Germany	Freiberg	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...