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:
Porkellis, Wendron, Cornwall, England, UK


mindat Locality ID: 38274
mindat URL: http://www.mindat.org/loc-38274.html

Tectonic Settings:

Total number of sublocalities beneath "Porkellis, Wendron, Cornwall, England, UK": 13
Total number of bottom-level sublocalities: 11

Number of Child Localities: 10
Child Localities:
Balcoath
Balmynheer Mine
Bassett & Grylls Mine (Porkellis Mine; Porkellis Tin Mines; Wheal Jantar; Balwath Mine)
Boswin Mine
East Basset & Grylls Mine
Garlidna United Mines
Medlyn Moor Mine
North Wheal Lovell (Garlidna United Mines)
Porkellis United Mine (Porkellis Moor Mine)
Wheal Enys (Wheal Vernon)

Latitude: 50°9'18"N
Longitude: 5°13'28"W
Decimal Degree (lat, lon): 50.155,-5.2244444444444
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: Al C Ca Cu F Fe H K O S Si Sn W Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ChalcopyriteClayCorundumDiasporeMalachiteMicaNonePyriteQuartzRutile
ScheeliteSphaleriteTopaz

11 IMA Minerals at location:
Cassiterite  (*)Chalcopyrite  (*)Goethite  (*)Hematite  (*)Malachite  (*)
Muscovite  (*)Pyrite  (*)Quartz  (*)Scheelite  (*)Sphalerite  (*)
Topaz  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Cassiterite  (*)RutileSnO27119207,119208,119209,119212,119215,119218,1192195171
Chalcopyrite  (*)ChalcopyriteCuFeS22119209,11921427198
Goethite  (*)DiasporeFeO(OH)11192077437
Hematite  (*)CorundumFe2O32119208,11921414640
Malachite  (*)MalachiteCu2(CO3)(OH)2111921412537
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)22119208,11920917380
Pyrite  (*)PyriteFeS23119208,119209,11921439462
Quartz  (*)QuartzSiO25119207,119208,119209,119214,11921961156
Scheelite  (*)ScheeliteCa(WO4)11192084894
Sphalerite  (*)SphaleriteZnS111920821482
Topaz  (*)TopazAl2SiO4F211192191476


No ages have been assigned to this locality yet.

All locality data graciously provided by mindat.org

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