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:
Dalton, Berkshire Co., Massachusetts, USA


mindat Locality ID: 52183
mindat URL: http://www.mindat.org/loc-52183.html

Tectonic Settings:

Total number of sublocalities beneath "Dalton, Berkshire Co., Massachusetts, USA": 11
Total number of bottom-level sublocalities: 11

Number of Child Localities: 11
Child Localities:
Anthophyllite "Asbestos" Mine
Barret Hill Tremolite & Chlorite Locality
Barrett Hill "Jasper" Locality
Barton Brook Mineral Locality
Cleveland Brook Serpentine Locality
Dalton Hematite Breccia Locality
Day Mountain Ilmenite & Magnetite Locality
Iron Mine
Johnson Road Serpentine Locality #1
Johnson Road Serpentine Locality #2
Railroad Ravine Mineral Locality

Latitude: 42°28'25"N
Longitude: 73°10'"W
Decimal Degree (lat, lon): 42.473611111111,-73.166666666667
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 C Ca Fe H K Mg Na O S Si Ti 

Elements from minerals reported directly at this locality: Al B C Ca Fe H K Mg Na O S Si Ti 

Structural Groups for minerals in this locality: 
AmphiboleCalciteChloriteClayClinozoisiteCorundumEpidoteFeldsparMicaNickeline
NoneQuartzTalcTourmaline

13 IMA Minerals at location:
Anthophyllite  (*)Calcite  (*)Clinochlore  (*)Epidote  (*)Hematite  (*)
Ilmenite  (*)Muscovite  (*)Orthoclase  (*)Pyrrhotite  (*)Quartz  (*)
Schorl  (*)Talc  (*)Tremolite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Anthophyllite  (*)Amphibole   Mg2Mg5Si8O22(OH)21219113718
Calcite  (*)CalciteCa(CO3)027770
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)801756
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)08173
Hematite  (*)CorundumFe2O3121911814640
Ilmenite  (*)CorundumFe2+Ti4+O305433
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2017380
Orthoclase  (*)FeldsparK(AlSi3O8)02349
Pyrrhotite  (*)NickelineFe7S809056
Quartz  (*)QuartzSiO2061156
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)02705
Talc  (*)Clay TalcMg3Si4O10(OH)203337
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)212191142562


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

All age data...

Other copyright data...