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:
Homerton Mine, Okehampton Hamlets, West Devon, Devon, England, UK

Oldest recorded age at locality: 295
Youngest recorded age at locality: 295

mindat Locality ID: 235712
mindat URL: http://www.mindat.org/loc-235712.html

Tectonic Settings:

Total number of sublocalities beneath "Homerton Mine, Okehampton Hamlets, West Devon, Devon, England, UK": 0
Total number of bottom-level sublocalities: 0

Latitude: 50°41'49"N
Longitude: 4°2'45"W
Decimal Degree (lat, lon): 50.696944444444,-4.0458333333333

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: As C Ca Fe O S Si 

Elements from minerals reported directly at this locality: As C Ca Fe O S Si 

Structural Groups for minerals in this locality: 
ArsenopyriteCalciteNoneQuartz

3 IMA Minerals at location:
Arsenopyrite  (*)Calcite  (*)Quartz  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Arsenopyrite  (*)ArsenopyriteFeAsS29529509052
Calcite  (*)CalciteCa(CO3)295295027770
Quartz  (*)QuartzSiO2295295061156



1 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
Lucy_082295295295K/ArAge of cotact metamorphism   Yes  4571Meldon Quarry (British Rail Quarry; British Railways Quarry; B. R. Quarry), Okehampton Hamlets, West Devon, Devon, England, UKMeldonHawkes et al. (1978 US4_51Age of contact metamorphism from intrusion of doloritic dyke and is equated to plutons in the area


SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

All age data...

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