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:
Stratford, Coos Co., New Hampshire, USA

Oldest recorded age at locality: 165
Youngest recorded age at locality: 165

mindat Locality ID: 24581
mindat URL: http://www.mindat.org/loc-24581.html

Tectonic Settings:

Total number of sublocalities beneath "Stratford, Coos Co., New Hampshire, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
North Percy Peak Locality
South Percy Peak Locality

Latitude: 44°39'35"N
Longitude: 71°26'6"W
Decimal Degree (lat, lon): 44.659722222222,-71.435
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 Ce F Fe H K Mo Na O P S Si Ti Zr 

Elements from minerals reported directly at this locality: Ca F Fe H Mo O S 

Structural Groups for minerals in this locality: 
AstrophylliteBerylCalciteClayCorundumDiasporeFeldsparFluoriteKaoliniteMica
MolybdeniteMonaziteNonePhenakiteQuartzTopazTourmalineZircon

17 IMA Minerals at location:
Albite  (*)Astrophyllite  (*)Beryl  (*)Fluorite  (*)Goethite  (*)
Hematite  (*)Kaolinite  (*)Microcline  (*)Molybdenite  (*)Monazite-(Ce)  (*)
Muscovite  (*)Phenakite  (*)Quartz  (*)Schorl  (*)Siderite  (*)
Topaz  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)1651652242090,2420918803
Astrophyllite  (*)AstrophylliteK2NaFe2+7Ti2(Si4O12)2O2(OH)4F1651651242091161
Beryl  (*)BerylBe3Al2Si6O181651652242090,2420914286
Fluorite  (*)FluoriteCaF216516509617
Goethite  (*)DiasporeFeO(OH)16516507437
Hematite  (*)CorundumFe2O3165165124209114640
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)416516512420915591
Microcline  (*)FeldsparK(AlSi3O8)1651652242090,2420914924
Molybdenite  (*)MolybdeniteMoS216516505800
Monazite-(Ce)  (*)MonaziteCe(PO4)1651651242091945
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)21651652242090,24209117380
Phenakite  (*)PhenakiteBe2(SiO4)1651651242090326
Quartz  (*)QuartzSiO21651652242090,24209161156
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)16516512420912705
Siderite  (*)CalciteFe(CO3)16516512420916417
Topaz  (*)TopazAl2SiO4F21651652242090,2420911476
Zircon  (*)ZirconZr(SiO4)16516512420905251


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
AREPS5_257-00036165165165        6133North Percy Peak Locality, Stratford, Coos Co., New Hampshire, USAPercy PeaksZartman (1977)10.1146/annurev.ea.05.050177.001353AREPS5_257 
AREPS5_257-00016165165165        6132South Percy Peak Locality, Stratford, Coos Co., New Hampshire, USAPercy PeaksZartman (1977)10.1146/annurev.ea.05.050177.001353AREPS5_257 

SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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