Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

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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:
Nantlle Vale, Gwynedd, Wales, UK


mindat Locality ID: 24740
mindat URL: http://www.mindat.org/loc-24740.html

Tectonic Settings:

Total number of sublocalities beneath "Nantlle Vale, Gwynedd, Wales, UK": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Benallt Mine
Drws-y-Coed Mine (Drwy-y-Coed Mine)
Mynydd Drws-y-Coed
Simdde Dylluan Mine (Talysarn Mine)

Latitude: 53°3'18"N
Longitude: 4°10'28"W
Decimal Degree (lat, lon): 53.055,-4.1744444444444

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 As C Ca Cu Fe H Ni O Pb S Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ArsenopyriteCalciteChalcopyriteHydrotalciteMalachiteMilleriteNickelineNonePyriteQuartz
RocksaltSphaleriteWoodwardite

14 IMA Minerals at location:
Ankerite  (*)Arsenopyrite  (*)Bornite  (*)Calcite  (*)Chalcopyrite  (*)
Galena  (*)Malachite  (*)Millerite  (*)Pyrite  (*)Pyrrhotite  (*)
Quartz  (*)Sphalerite  (*)Woodwardite  (*)Wroewolfeite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)211234043092
Arsenopyrite  (*)ArsenopyriteFeAsS2123405,1234079052
Bornite  (*)NoneCu5FeS411234055516
Calcite  (*)CalciteCa(CO3)112340527770
Chalcopyrite  (*)ChalcopyriteCuFeS23123404,123405,12340727198
Galena  (*)RocksaltPbS2123404,12340524243
Malachite  (*)MalachiteCu2(CO3)(OH)2112340512537
Millerite  (*)MilleriteNiS11234051066
Pyrite  (*)PyriteFeS23123404,123405,12340739462
Pyrrhotite  (*)NickelineFe7S82123405,1234079056
Quartz  (*)QuartzSiO22123405,12340661156
Sphalerite  (*)SphaleriteZnS2123404,12340521482
Woodwardite  (*)Woodwardite Hydrotalcite(Cu1-xAlx)(SO4)x/2(OH)2·nH2O (x < 0.5, n < 3x/2)112340757
Wroewolfeite  (*)NoneCu4(SO4)(OH)6·2H2O112340595



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL
R060152Benallt Mine, Nantlle Vale, Gwynedd, Wales, UKhttps://rruff.info/R060152
R060460Benallt Mine, Nantlle Vale, Gwynedd, Wales, UKhttps://rruff.info/R060460


All locality data graciously provided by mindat.org

All age data...

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