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:
Isles Of Scilly, Cornwall, England, UK

Oldest recorded age at locality: 318
Youngest recorded age at locality: 0

mindat Locality ID: 187896
mindat URL: http://www.mindat.org/loc-187896.html

Tectonic Settings:

Total number of sublocalities beneath "Isles Of Scilly, Cornwall, England, UK": 7
Total number of bottom-level sublocalities: 4

Number of Child Localities: 3
Child Localities:
Bryher
St Martins
Tresco

Latitude: 49°57'54"N
Longitude: 6°21'13"W
Decimal Degree (lat, lon): 49.965,-6.3536111111111
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 C Fe H Na O Si Sn 

Elements from minerals reported directly at this locality: Al B Fe H Na O Si 

Structural Groups for minerals in this locality: 
NoneRutileTourmaline

3 IMA Minerals at location:
Cassiterite  (*)Pigotite  (*)Schorl  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Cassiterite  (*)RutileSnO231204117723,117725,117727,1177285171
Pigotite  (*)NoneAl4C6H5O10·13H2O (?)0011177283
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)318002705


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Lucy_160Peninnis Head is a point of Isles of Scilly
Lucy_161Peninnis Head is a point of Isles of Scilly
Lucy_162Peninnis Head is a point of Isles of Scilly
Lucy_226located on the Isles of Scilly
Lucy_227located on the Isles of Scilly
Lucy_228located on the Isles of Scilly
Michelle_750On Tresco Island, in the Isles of Scilly. Pigotite occurs as a biomineral in granitic caves/fissures as a result of organic acids from seeping vegetation combined with aluminum derived from feldspar.


9 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_130312282297 ± 15K/ArPrevious K/Ar determinationmuscovite   Muscovite  187896Isles Of Scilly, Cornwall, England, UKIsle of Scilly GraniteBray and Spooner (1983)10.1144/GSL.SP.1964.001.01.15EG78_1064Arithmetic mean of 2 muscovite samples from Isles of Scilly Granites
Lucy_131a318300309 ± 9K/ArPrevious K/Ar determinationbiotite     187896Isles Of Scilly, Cornwall, England, UKIsle of Scilly GraniteBray and Spooner (1983)10.1144/GSL.SP.1964.001.01.15EG78_1064Age determined from one sample of biotite at Isles of Scilly Granite
Lucy_160292.2290292.2 - 290Pb-U/Pb-PbRange of ages given with 206Pb/238U, 207Pb/235U and 207Pb/206Pb.whole rockCORN-226A (1)    187896Isles Of Scilly, Cornwall, England, UKPeninnis HeadChen et al (1993)10.1144/gsjgs.150.6.1183JGSL150_1183Analytical data for igneous monazites with sample and (analysis) numbers
Lucy_161287.4285.4286.4 ± 140Ar-39ArIntergrated age of Cornubian BatholithmuscoviteCORN-266A  Muscovite  187896Isles Of Scilly, Cornwall, England, UKPeninnis HeadChen et al (1993)10.1144/gsjgs.150.6.1183JGSL150_1183Analytical data for micas
Lucy_162287.7285.9286.8 ± 0.940Ar-39ArIntergrated age of Cornubian BatholithbiotiteCORN-266A    187896Isles Of Scilly, Cornwall, England, UKPeninnis HeadChen et al (1993)10.1144/gsjgs.150.6.1183JGSL150_1183Analytical data for micas
Lucy_226312294303 ± 9K-ArAge of Scilly Isles Granitebiotite     187896Isles Of Scilly, Cornwall, England, UKPeninnisMiller et al (1964)10.1002/gj.3350040109GJ4_105New ages on the granites and derived rocks
Lucy_227290276283 ± 7K-ArAge of Scilly Isles Granitemuscovite   Muscovite  187896Isles Of Scilly, Cornwall, England, UKPeninnisMiller et al (1964)10.1002/gj.3350040109GJ4_105New ages on the granites and derived rocks
Lucy_228303293298 ± 5K-ArAge of Scilly Isles Granitemuscovite   Muscovite  187896Isles Of Scilly, Cornwall, England, UKGiant's HeadMiller et al (1964)10.1002/gj.3350040109GJ4_105New ages on the granites and derived rocks
Michelle_75000Recent Age of pigotitehigh    Pigotite 1010Piper's Hole, Tresco, Isles Of Scilly, Cornwall, England, UKPiper's HoleCreighton (1894) GM1_223Pigotite occurs as a biomineral in granitic caves/fissures as a result of organic acids from seeping vegetation combined with aluminum derived from feldspar.

SampleSource LocalityReference URL

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