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:
Ridley Township, Delaware Co., Pennsylvania, USA


mindat Locality ID: 24496
mindat URL: http://www.mindat.org/loc-24496.html

Tectonic Settings:

Total number of sublocalities beneath "Ridley Township, Delaware Co., Pennsylvania, USA": 7
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Leiperville
Moore (White Horse Tavern)
Prospect Park
Wallingford

Latitude: 39°53'26"N
Longitude: 75°21'58"W
Decimal Degree (lat, lon): 39.890555555556,-75.366111111111
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 C Ca Cu F Fe H K Mg Mn Na O P S Si Ti U 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ApatiteBerylCalciteClayCorundumEpidoteFeldsparGarnetMeta-autuniteMica
NatroliteNoneNot in a structural groupPyriteQuartzSmectite-vermiculiteThomsoniteTitaniteTourmaline

22 IMA Minerals at location:
Albite  (*)Almandine  (*)Beryl  (*)Fluorapatite  (*)Grossular  (*)
Ilmenite  (*)Kyanite  (*)Meta-autunite  (*)Microcline  (*)Muscovite  (*)
Natrolite  (*)Pyrite  (*)Quartz  (*)Saponite  (*)Schorl  (*)
Siderite  (*)Sillimanite  (*)Spessartine  (*)Thomsonite-Ca  (*)Titanite  (*)
Torbernite  (*)Zoisite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)12628558803
Almandine  (*)GarnetFe2+3Al2(SiO4)33262855,262858,2628602353
Beryl  (*)BerylBe3Al2Si6O184262854,262855,262856,2628604286
Fluorapatite  (*)ApatiteCa5(PO4)3F12628582740
Grossular  (*)GarnetCa3Al2(SiO4)312628551544
Ilmenite  (*)CorundumFe2+Ti4+O312628555433
Kyanite  (*)Not in a structural groupAl2OSiO42262856,2628581507
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O1262855388
Microcline  (*)FeldsparK(AlSi3O8)3262855,262858,2628604924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)24262855,262856,262858,26286017380
Natrolite  (*)NatroliteNa2(Si3Al2)O10·2H2O12628551236
Pyrite  (*)PyriteFeS22262855,26285639462
Quartz  (*)QuartzSiO23262855,262858,26286061156
Saponite  (*)Clay Smectite-vermiculite(Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10(OH)2·4H2O1262855301
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)12628552705
Siderite  (*)CalciteFe(CO3)12628556417
Sillimanite  (*)Not in a structural groupAl2SiO512628561516
Spessartine  (*)GarnetMn2+3Al2(SiO4)32262855,2628601214
Thomsonite-Ca  (*)ThomsoniteNaCa2(Al5Si5)O20·6H2O1262855452
Titanite  (*)TitaniteCaTi(SiO4)O12628554899
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O12628551059
Zoisite  (*)EpidoteCa2Al3[Si2O7][SiO4]O(OH)12628551025


No ages have been assigned to this locality yet.
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