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:
Crow Hill, St Stephen-in-Brannel, Cornwall, England, UK

Oldest recorded age at locality: 140
Youngest recorded age at locality: 140

mindat Locality ID: 222021
mindat URL: http://www.mindat.org/loc-222021.html

Tectonic Settings:

Total number of sublocalities beneath "Crow Hill, St Stephen-in-Brannel, Cornwall, England, UK": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Crowhill Mine (Crow Hill Mine; New Crow Hill Mine; Trevanion Mine)
Wheal Louise (Wheal Louisa)

Latitude: 50°19'19"N
Longitude: 4°53'44"W
Decimal Degree (lat, lon): 50.321944444444,-4.8955555555556

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.

Arsenopyrite	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: As Fe O Pb S Si Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Arsenopyrite None Pyrite Quartz Rocksalt Sphalerite

5 IMA Minerals at location:

Arsenopyrite ()*	Galena ()*	Pyrite ()*	Quartz ()*	Sphalerite ()*

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
Arsenopyrite ()*	Arsenopyrite	FeAsS	140	140	1	119000	9052
Galena ()*	Rocksalt	PbS	140	140	1	119000	24243
Pyrite ()*	Pyrite	FeS₂	140	140	1	119000	39462
Quartz ()*	Quartz	SiO₂	140	140	1	119000	61156
Sphalerite ()*	Sphalerite	ZnS	140	140	1	119000	21482

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
	Lucy_276	140	140	140		Galena age for Crow Hill		galena				Galena			222020	Crowhill Mine (Crow Hill Mine; New Crow Hill Mine; Trevanion Mine), Crow Hill, St Stephen-in-Brannel, Cornwall, England, UK	Crow Hill	Darnley et al. (1965)		MM34_159	These results have been calculated using Moorbath's constants, from the tables compiled by Pockley (1961)

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...