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:
Redstone, Conway, Carroll Co., New Hampshire, USA

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

mindat Locality ID: 205884
mindat URL: http://www.mindat.org/loc-205884.html

Tectonic Settings:

Total number of sublocalities beneath "Redstone, Conway, Carroll Co., New Hampshire, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Redstone "Green Granite" Quarry
Redstone "Red Granite" Quarry

Latitude: 44°0'53"N
Longitude: 71°6'4"W
Decimal Degree (lat, lon): 44.014722222222,-71.101111111111
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 C Ca Ce F Fe H K Mg Na Nb O P Pb S Si Th Ti Y Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmphiboleApatiteArsenopyriteBrookiteCalciteChloriteClayClinozoisiteColumbiteCorundum
EpidoteFeldsparFluoriteKaoliniteMonaziteNoneNot in a structural groupPyriteQuartzRocksalt
RutileSmectite-vermiculiteSphaleriteSpinelTitaniteZircon

31 IMA Minerals at location:
Albite  (*)Anatase  (*)Arsenopyrite  (*)Brookite  (*)Calcite  (*)
Chamosite  (*)Clinochlore  (*)Columbite-(Fe)  (*)Epidote  (*)Fluorapatite  (*)
Fluorite  (*)Galena  (*)Hastingsite  (*)Hematite  (*)Ilmenite  (*)
Kaolinite  (*)Magnetite  (*)Microcline  (*)Monazite-(Ce)  (*)Nontronite  (*)
Pyrite  (*)Quartz  (*)Röntgenite-(Ce)  (*)Rutile  (*)Siderite  (*)
Sphalerite  (*)Thorianite  (*)Thorite  (*)Titanite  (*)Xenotime-(Y)  (*)
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)195.9969.912418338803
Anatase  (*)Not in a structural groupTiO2195.9969.912418332162
Arsenopyrite  (*)ArsenopyriteFeAsS195.9969.912418339052
Brookite  (*)BrookiteTiO2195.9969.91241833700
Calcite  (*)CalciteCa(CO3)195.9969.92241832,24183327770
Chamosite  (*)Chlorite Clay(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8195.9969.91241833577
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)8195.9969.922418331756
Columbite-(Fe)  (*)ColumbiteFe2+Nb2O6195.9969.91241833518
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)195.9969.912418328173
Fluorapatite  (*)ApatiteCa5(PO4)3F195.9969.912418332740
Fluorite  (*)FluoriteCaF2195.9969.92241832,2418339617
Galena  (*)RocksaltPbS195.9969.9124183324243
Hastingsite  (*)AmphiboleNaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2195.9969.91241833209
Hematite  (*)CorundumFe2O3195.9969.9124183314640
Ilmenite  (*)CorundumFe2+Ti4+O3195.9969.912418335433
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)4195.9969.912418325591
Magnetite  (*)SpinelFe2+Fe3+2O4195.9969.92241832,24183314899
Microcline  (*)FeldsparK(AlSi3O8)195.9969.92241832,2418334924
Monazite-(Ce)  (*)MonaziteCe(PO4)195.9969.91241833945
Nontronite  (*)Clay Smectite-vermiculiteNa0.3Fe3+2(Si,Al)4O10(OH)2·nH2O195.9969.91241833471
Pyrite  (*)PyriteFeS2195.9969.9124183339462
Quartz  (*)QuartzSiO2195.9969.92241832,24183361156
Röntgenite-(Ce)  (*)NoneCa2Ce3(CO3)5F3195.9969.9124183315
Rutile  (*)RutileTiO2195.9969.912418335614
Siderite  (*)CalciteFe(CO3)195.9969.912418336417
Sphalerite  (*)SphaleriteZnS195.9969.9124183321482
Thorianite  (*)FluoriteThO2195.9969.91241833236
Thorite  (*)ZirconTh(SiO4)195.9969.912418331006
Titanite  (*)TitaniteCaTi(SiO4)O195.9969.912418334899
Xenotime-(Y)  (*)ZirconY(PO4)195.9969.91241833939
Zircon  (*)ZirconZr(SiO4)194.669.92241832,2418335251


10 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
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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