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:
Gorham, Coos Co., New Hampshire, USA


mindat Locality ID: 17325
mindat URL: http://www.mindat.org/loc-17325.html

Tectonic Settings:

Total number of sublocalities beneath "Gorham, Coos Co., New Hampshire, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Mascot Mine (Gorham Lead Mine; Galena King Mine)

Latitude: 44°23'16"N
Longitude: 71°10'23"W
Decimal Degree (lat, lon): 44.387777777778,-71.173055555556
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: Ag Al As Au C Ca Cu Fe H K Mg O Pb S Si Ti U Zn 

Elements from minerals reported directly at this locality: Al Cu H Mg O S Si 

Structural Groups for minerals in this locality: 
AcanthiteAragoniteArsenopyriteBaryteBrochantiteCalciteChalcopyriteChloriteClayCopper
DevillineDiasporeGypsumKtenasiteLinariteMalachiteMicaNickelineNoneNot in a structural group
PyriteQuartzRocksaltRutileSphalerite

34 IMA Minerals at location:
Acanthite  (*)Anglesite  (*)Aragonite  (*)Arsenopyrite  (*)Aurichalcite  (*)
Brochantite  (*)Calcite  (*)Cerussite  (*)Chalcocite  (*)Chalcopyrite  (*)
Chamosite  (*)Clinochlore  (*)Cuprite  (*)Galena  (*)Goethite  (*)
Gold  (*)Gypsum  (*)Hemimorphite  (*)Linarite  (*)Malachite  (*)
Metazeunerite  (*)Muscovite  (*)Posnjakite  (*)Pyrite  (*)Pyrrhotite  (*)
Quartz  (*)Ramsbeckite  (*)Rutile  (*)Schulenbergite  (*)Serpierite  (*)
Siderite  (*)Silver  (*)Smithsonite  (*)Sphalerite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S12420522793
Anglesite  (*)BarytePb(SO4)12420522734
Aragonite  (*)AragoniteCa(CO3)12420523250
Arsenopyrite  (*)ArsenopyriteFeAsS12420529052
Aurichalcite  (*)None(Zn,Cu)5(CO3)2(OH)61242052919
Brochantite  (*)BrochantiteCu4(SO4)(OH)612420521633
Calcite  (*)CalciteCa(CO3)124205227770
Cerussite  (*)AragonitePb(CO3)12420524979
Chalcocite  (*)NoneCu2S05707
Chalcopyrite  (*)ChalcopyriteCuFeS2124205227198
Chamosite  (*)Chlorite Clay(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)81242052577
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)801756
Cuprite  (*)Not in a structural groupCu2O12420522970
Galena  (*)RocksaltPbS124205224243
Goethite  (*)DiasporeFeO(OH)12420527437
Gold  (*)CopperAu124205230554
Gypsum  (*)GypsumCa(SO4)·2H2O12420526890
Hemimorphite  (*)Not in a structural groupZn4(Si2O7)(OH)2·H2O12420521689
Linarite  (*)LinariteCuPb(SO4)(OH)21242052987
Malachite  (*)MalachiteCu2(CO3)(OH)2124205212537
Metazeunerite  (*)NoneCu(UO2)2(AsO4)2·8H2O1242052182
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2124205217380
Posnjakite  (*)NoneCu4(SO4)(OH)6·H2O1242052309
Pyrite  (*)PyriteFeS2124205239462
Pyrrhotite  (*)NickelineFe7S812420529056
Quartz  (*)QuartzSiO2124205261156
Ramsbeckite  (*)NoneCu15(SO4)4(OH)22·6H2O124205268
Rutile  (*)RutileTiO212420525614
Schulenbergite  (*)Ktenasite(Cu,Zn)7(SO4)2(OH)10·3H2O1242052142
Serpierite  (*)DevillineCa(Cu,Zn)4(SO4)2(OH)6·3H2O1242052292
Siderite  (*)CalciteFe(CO3)12420526417
Silver  (*)CopperAg12420525186
Smithsonite  (*)CalciteZn(CO3)12420522473
Sphalerite  (*)SphaleriteZnS124205221482


No ages have been assigned to this locality yet.
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All locality data graciously provided by mindat.org

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