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:
Charlemont, Franklin Co., Massachusetts, USA


mindat Locality ID: 18555
mindat URL: http://www.mindat.org/loc-18555.html

Tectonic Settings:

Total number of sublocalities beneath "Charlemont, Franklin Co., Massachusetts, USA": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Graphite Mine
Hawks Pyrite Mine (Mount Peak Mine)
Hawks Pyrite Prospect

Latitude: 42°37'40"N
Longitude: 72°52'13"W
Decimal Degree (lat, lon): 42.627777777778,-72.870277777778
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 C Ca Cu Fe H K Mg Na O S Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmphiboleCalciteChalcopyriteChloritoidClayDiasporeFeldsparGarnetHalotrichiteMelanterite
MicaNonePyriteQuartzSphaleriteSpinel

17 IMA Minerals at location:
Albite  (*)Almandine  (*)Ankerite  (*)Calcite  (*)Chalcopyrite  (*)
Chloritoid  (*)Gahnite  (*)Goethite  (*)Graphite  (*)Grossular  (*)
Melanterite  (*)Muscovite  (*)Pickeringite  (*)Pyrite  (*)Quartz  (*)
Sphalerite  (*)Tremolite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)12194188803
Almandine  (*)GarnetFe2+3Al2(SiO4)312194182353
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)212194183092
Calcite  (*)CalciteCa(CO3)121941827770
Chalcopyrite  (*)ChalcopyriteCuFeS2121941827198
Chloritoid  (*)ChloritoidFe2+Al2O(SiO4)(OH)21219418376
Gahnite  (*)SpinelZnAl2O41219418445
Goethite  (*)DiasporeFeO(OH)12194187437
Graphite  (*)NoneC12194172812
Grossular  (*)GarnetCa3Al2(SiO4)312194181544
Melanterite  (*)MelanteriteFe(SO4)·7H2O1219418915
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2121941817380
Pickeringite  (*)HalotrichiteMgAl2(SO4)4·22H2O1219418265
Pyrite  (*)PyriteFeS2121941839462
Quartz  (*)QuartzSiO2121941861156
Sphalerite  (*)SphaleriteZnS121941821482
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)212194182562


No ages have been assigned to this locality yet.

All locality data graciously provided by mindat.org

All age data...

Other copyright data...