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:
Stithians, Cornwall, England, UK

Oldest recorded age at locality: 294
Youngest recorded age at locality: 276

mindat Locality ID: 222241
mindat URL: http://www.mindat.org/loc-222241.html

Tectonic Settings:

Total number of sublocalities beneath "Stithians, Cornwall, England, UK": 7
Total number of bottom-level sublocalities: 5

Number of Child Localities: 2
Child Localities:
Longdowns
Penhalvean

Latitude: 50°11'4"N
Longitude: 5°11'15"W
Decimal Degree (lat, lon): 50.184444444444,-5.1875
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 B Be Ca Ce F Fe H K Na O P S Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ApatiteClayFeldsparFluoriteMicaMonaziteNoneNot in a structural groupPyriteQuartz
SphaleriteTourmaline

10 IMA Minerals at location:
Albite  (*)Bertrandite  (*)Fluorapatite  (*)Fluorite  (*)Monazite-(Ce)  (*)
Muscovite  (*)Pyrite  (*)Quartz  (*)Schorl  (*)Sphalerite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)29427611190518803
Bertrandite  (*)Not in a structural groupBe4Si2O7(OH)22942761119055606
Fluorapatite  (*)ApatiteCa5(PO4)3F29427611190552740
Fluorite  (*)FluoriteCaF229427611190559617
Monazite-(Ce)  (*)MonaziteCe(PO4)2942761119055945
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2294276111905117380
Pyrite  (*)PyriteFeS2294276111905539462
Quartz  (*)QuartzSiO2294276111905561156
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)29427611190552705
Sphalerite  (*)SphaleriteZnS294276111905521482


2 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_022a294276285 ± 9Rb-Sr dataAge granite intruded C 1, C 1 KFeldpsar, C 1 Plag., C 1 Bio., C 1 Musc.    260361Rosemanowas Quarry, Longdowns, Stithians, Cornwall, England, UKRosemanawas QuarryDarbyshire et al. (1985)10.1144/gsjgs.142.6.1159JGSL142_1159 
Lucy_022b292288290 ± 2Rb-Sr dataC 1 mineral isochron appears to give a better estimate of the age of the Carnmenellis granite than the whole rock regression line. C 1, C 1 KFeldpsar, C 1 Plag., C 1 Bio., C 1 Musc.    260361Rosemanowas Quarry, Longdowns, Stithians, Cornwall, England, UKRosemanawas QuarryDarbyshire et al. (1985)10.1144/gsjgs.142.6.1159JGSL142_1159Circuation of hydrothermal fluids thre does not appear to have caused widespread resetting.

SampleSource LocalityReference URL

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