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:
Conway, Carroll Co., New Hampshire, USA

Oldest recorded age at locality: 195.99
Youngest recorded age at locality: 69.9

mindat Locality ID: 23317
mindat URL: http://www.mindat.org/loc-23317.html

Tectonic Settings:

Total number of sublocalities beneath "Conway, Carroll Co., New Hampshire, USA": 10
Total number of bottom-level sublocalities: 8

Number of Child Localities: 4
Child Localities:
Lovejoy Gravel Pits (Lovejoy Pit)
North Conway
Redstone
White Mountain Granite Quarry

Latitude: 44°1'39"N
Longitude: 71°6'43"W
Decimal Degree (lat, lon): 44.0275,-71.111944444444
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 As Be C Ca Ce F Fe H K Mg Na Nb O P Pb S Si Sn Th Ti Y Zn Zr 

Elements from minerals reported directly at this locality: Al Ca Fe H Mg O Si 

Structural Groups for minerals in this locality: 
AmorphousAmphiboleAndalusiteApatiteArsenopyriteAstrophylliteBrookiteCalciteChloriteClay
ClinozoisiteColumbiteCorundumEpidoteFeldsparFluoriteKaoliniteMicaMonaziteNone
Not in a structural groupPyritePyroxeneQuartzRocksaltRutileSmectite-vermiculiteSphaleriteSpinelStilpnomelane
TitaniteTopazZircon

47 IMA Minerals at location:
Actinolite  (*)Albite  (*)Anatase  (*)Andalusite  (*)Arfvedsonite  (*)
Arsenopyrite  (*)Astrophyllite  (*)Bavenite  (*)Brookite  (*)Calcite  (*)
Cassiterite  (*)Chamosite  (*)Clinochlore  (*)Clinozoisite  (*)Columbite-(Fe)  (*)
Diopside  (*)Epidote  (*)Fluorapatite  (*)Fluorite  (*)Galena  (*)
Hastingsite  (*)Hedenbergite  (*)Hematite  (*)Ilmenite  (*)Kaolinite  (*)
Magnetite  (*)Microcline  (*)Monazite-(Ce)  (*)Muscovite  (*)Nontronite  (*)
Opal  (*)Pyrite  (*)Quartz  (*)Riebeckite  (*)Röntgenite-(Ce)  (*)
Rutile  (*)Siderite  (*)Sillimanite  (*)Sphalerite  (*)Stilpnomelane  (*)
Thorianite  (*)Thorite  (*)Titanite  (*)Topaz  (*)Tremolite  (*)
Xenotime-(Y)  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)218817812418283419
Albite  (*)FeldsparNa(AlSi3O8)195.9969.94241825,241828,241830,2418338803
Anatase  (*)Not in a structural groupTiO2195.9969.912418332162
Andalusite  (*)AndalusiteAl2SiO5195.9969.901310
Arfvedsonite  (*)AmphiboleNaNa2(Fe2+4Fe3+)Si8O22(OH)21881781241828295
Arsenopyrite  (*)ArsenopyriteFeAsS195.9969.92241828,2418339052
Astrophyllite  (*)AstrophylliteK2NaFe2+7Ti2(Si4O12)2O2(OH)4F1881781241828161
Bavenite  (*)NoneCa4Be2+xAl2-xSi9O26-x(OH)2+x (x = 0 to 1)1881782241825,241828255
Brookite  (*)BrookiteTiO2195.9969.91241833700
Calcite  (*)CalciteCa(CO3)195.9969.93241828,241832,24183327770
Cassiterite  (*)RutileSnO212418255171
Chamosite  (*)Chlorite Clay(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8195.9969.91241833577
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)8195.9969.922418331756
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)195.9969.901025
Columbite-(Fe)  (*)ColumbiteFe2+Nb2O6195.9969.92241827,241833518
Diopside  (*)PyroxeneCaMgSi2O6195.9969.904135
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)195.9969.912418328173
Fluorapatite  (*)ApatiteCa5(PO4)3F195.9969.92241830,2418332740
Fluorite  (*)FluoriteCaF2195.9969.99241825,241827,241828,241829,241830,241831,241832,241833,2418349617
Galena  (*)RocksaltPbS195.9969.9124183324243
Hastingsite  (*)AmphiboleNaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2195.9969.91241833209
Hedenbergite  (*)PyroxeneCaFe2+Si2O6195.9969.90741
Hematite  (*)CorundumFe2O3195.9969.94241827,241828,241829,24183314640
Ilmenite  (*)CorundumFe2+Ti4+O3195.9969.912418335433
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)4195.9969.912418325591
Magnetite  (*)SpinelFe2+Fe3+2O4195.9969.92241832,24183314899
Microcline  (*)FeldsparK(AlSi3O8)195.9969.97241825,241827,241828,241830,241832,241833,2418344924
Monazite-(Ce)  (*)MonaziteCe(PO4)195.9969.91241833945
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)21881782241828,24183017380
Nontronite  (*)Clay Smectite-vermiculiteNa0.3Fe3+2(Si,Al)4O10(OH)2·nH2O195.9969.91241833471
Opal  (*)AmorphousSiO2·nH2O12418252994
Pyrite  (*)PyriteFeS2195.9969.9124183339462
Quartz  (*)QuartzSiO2195.9969.98241825,241827,241828,241829,241830,241832,241833,24183461156
Riebeckite  (*)Amphibole   Na2(Fe2+3Fe3+2)Si8O22(OH)21881782241825,241828375
Röntgenite-(Ce)  (*)NoneCa2Ce3(CO3)5F3195.9969.9124183315
Rutile  (*)RutileTiO2195.9969.912418335614
Siderite  (*)CalciteFe(CO3)195.9969.92241830,2418336417
Sillimanite  (*)Not in a structural groupAl2SiO5195.9969.901516
Sphalerite  (*)SphaleriteZnS195.9969.9124183321482
Stilpnomelane  (*)Stilpnomelane Clay(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O1241825456
Thorianite  (*)FluoriteThO2195.9969.91241833236
Thorite  (*)ZirconTh(SiO4)195.9969.93241827,241830,2418331006
Titanite  (*)TitaniteCaTi(SiO4)O195.9969.912418334899
Topaz  (*)TopazAl2SiO4F212418251476
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)212418252562
Xenotime-(Y)  (*)ZirconY(PO4)195.9969.91241833939
Zircon  (*)ZirconZr(SiO4)194.669.95241827,241828,241832,241833,2418345251


11 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
Alexandra-0193188178183 ± 5 Age of pegmatite      5942Hurricane Mountain Localities, North Conway, Conway, Carroll Co., New Hampshire, USAHurricane MountainBradley et al. (2016)10.3749/canmin.1600035CM54_945 
USGS-Rb-Sr-00200195.99175.99185.99±10Rb-Srage not evaluatedbiotite     205884Redstone, Conway, Carroll Co., New Hampshire, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-00201188.14170.14179.14±9Rb-Srage not evaluatedbiotite     205884Redstone, Conway, Carroll Co., New Hampshire, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-01135175.41157.41166.41±9Rb-Srage of intrusionbiotite     205884Redstone, Conway, Carroll Co., New Hampshire, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-02173175.67157.67166.67±9Rb-Srage of intrusionbiotite     205884Redstone, Conway, Carroll Co., New Hampshire, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-U-Th-Pb-00041_206_238194.6176.6185.6±9206_238age not evaluatedzircon   Zircon  205884Redstone, Conway, Carroll Co., New Hampshire, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00041_207_206189.969.9129.9±60207_206age not evaluatedzircon   Zircon  205884Redstone, Conway, Carroll Co., New Hampshire, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00041_207_235190.6172.6181.6±9207_235age not evaluatedzircon   Zircon  205884Redstone, Conway, Carroll Co., New Hampshire, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00345_206_238190.6180.6185.6±5206_238 zircon   Zircon  205884Redstone, Conway, Carroll Co., New Hampshire, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00345_207_206189.969.9129.9±60207_206 zircon   Zircon  205884Redstone, Conway, Carroll Co., New Hampshire, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-00345_207_235186.6176.6181.6±5207_235 zircon   Zircon  205884Redstone, Conway, Carroll Co., New Hampshire, USA USGS-U-Th-Pb USGS-U-Th-Pb 

SampleSource LocalityReference URL

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