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:
Valenciana Mine, Guanajuato, Guanajuato Municipality, Guanajuato, Mexico

Oldest recorded age at locality: 30.7
Youngest recorded age at locality: 27.4

mindat Locality ID: 2326
mindat URL: http://www.mindat.org/loc-2326.html

Tectonic Settings:

Total number of sublocalities beneath "Valenciana Mine, Guanajuato, Guanajuato Municipality, Guanajuato, Mexico": 0
Total number of bottom-level sublocalities: 0

Latitude: 21°0'0"N
Longitude: 101°16'"W
Decimal Degree (lat, lon): 21,-101.26666666667

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	Apophyllite	Calcite	Chalcopyrite	Copper	Feldspar	Milarite	None	Not in a structural group	Polybasite
Quartz	Sphalerite

Acanthite ()*	Albite ()*	Calcite ()*	Chalcopyrite ()*	Hydroxyapophyllite-(K) ()*
Laumontite ()*	Milarite ()*	Polybasite ()*	Proustite ()*	Pyrargyrite ()*
Quartz ()*	Rhodochrosite ()*	Selenopolybasite ()*	Silver ()*	Sphalerite ()*
Stephanite ()*

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 Al As Be C Ca Cu F Fe H K Mn Na O S Sb Se Si Zn

Elements from minerals reported directly at this locality: Ag Al As Be C Ca Cu F Fe H K Mn Na O S Sb Se Si Zn

Structural Groups for minerals in this locality:
Acanthite Apophyllite Calcite Chalcopyrite Copper Feldspar Milarite None Not in a structural group Polybasite
Quartz Sphalerite

16 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Acanthite ()*	Acanthite	Ag₂S	30.7	27.4	2793
Albite ()*	Feldspar	Na(AlSi₃O₈)	30.7	27.4	8803
Calcite ()*	Calcite	Ca(CO₃)	30.7	27.4	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	30.7	27.4	27198
Hydroxyapophyllite-(K) ()*	Apophyllite	KCa₄Si₈O₂₀(OH,F)·8H₂O	30.7	27.4	85
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	30.7	27.4	1271
Milarite ()*	Milarite	KCa₂(Be₂AlSi₁₂)O₃₀·H₂O	30.7	27.4	156
Polybasite ()*	Polybasite	[Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇]	30.7	27.4	716
Proustite ()*	None	Ag₃AsS₃	30.7	27.4	733
Pyrargyrite ()*	None	Ag₃SbS₃	30.7	27.4	1425
Quartz ()*	Quartz	SiO₂	30.7	27.4	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)	30.7	27.4	1711
Selenopolybasite ()*	None	Cu(Ag,Cu)₆Ag₉Sb₂(S,Se)₉Se₂	30.7	27.4	6
Silver ()*	Copper	Ag	30.7	27.4	5186
Sphalerite ()*	Sphalerite	ZnS	30.7	27.4	21482
Stephanite ()*	None	Ag₅SbS₄	30.7	27.4	586

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
EG98_1029_tbl_1_014	epithermal

1 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
	EG98_1029_tbl_1_014	30.7	27.4	27.4–30.7	K-Ar						Yes				2322	Guanajuato, Guanajuato Municipality, Guanajuato, Mexico	Guanajuato	Camprubi et al. (2003)	10.2113/gsecongeo.98.5.1029	EG98_1029

All locality data graciously provided by mindat.org

All age data...