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:
Dracut, Middlesex Co., Massachusetts, USA


mindat Locality ID: 22353
mindat URL: http://www.mindat.org/loc-22353.html

Tectonic Settings:

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

Number of Child Localities: 3
Child Localities:
Brox Quarry
Dracut Nickel Mine (Nickel Mine Hill)
PJ Keating Quarry (Dracut Quarry; Condon Quarry)

Latitude: 42°41'6"N
Longitude: 71°16'48"W
Decimal Degree (lat, lon): 42.685,-71.28
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 Cu F Fe H K Mg Na Ni O P S Si Ti W 

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

Structural Groups for minerals in this locality: 
AmorphousApatiteCalciteChalcopyriteChloriteClayClinozoisiteCorundumEpidoteFeldspar
FluoriteGarnetMarcasiteMicaNickelineNoneNot in a structural groupPentlanditePrehnitePyrite
PyroxeneQuartzScheeliteSpinelTalcTitaniteTourmaline

28 IMA Minerals at location:
Almandine  (*)Anatase  (*)Calcite  (*)Chalcopyrite  (*)Clinochlore  (*)
Clinozoisite  (*)Diopside  (*)Epidote  (*)Fluorapatite  (*)Fluorite  (*)
Grossular  (*)Ilmenite  (*)Magnetite  (*)Marcasite  (*)Microcline  (*)
Muscovite  (*)Opal  (*)Pentlandite  (*)Polydymite  (*)Prehnite  (*)
Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Scheelite  (*)Schorl  (*)
Talc  (*)Titanite  (*)Violarite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Almandine  (*)GarnetFe2+3Al2(SiO4)312195962353
Anatase  (*)Not in a structural groupTiO212195942162
Calcite  (*)CalciteCa(CO3)2219594,21959627770
Chalcopyrite  (*)ChalcopyriteCuFeS2121959527198
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)801756
Clinozoisite  (*)Clinozoisite EpidoteCa2Al3[Si2O7][SiO4]O(OH)12195961025
Diopside  (*)PyroxeneCaMgSi2O612195964135
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)12195968173
Fluorapatite  (*)ApatiteCa5(PO4)3F12195962740
Fluorite  (*)FluoriteCaF212195969617
Grossular  (*)GarnetCa3Al2(SiO4)312195961544
Ilmenite  (*)CorundumFe2+Ti4+O312195955433
Magnetite  (*)SpinelFe2+Fe3+2O4121959514899
Marcasite  (*)MarcasiteFeS212195955674
Microcline  (*)FeldsparK(AlSi3O8)12195964924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2121959617380
Opal  (*)AmorphousSiO2·nH2O12195962994
Pentlandite  (*)Pentlandite(Ni,Fe)9S812195951512
Polydymite  (*)SpinelNi2+Ni3+2S41219595131
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)22219594,2195961898
Pyrite  (*)PyriteFeS2121959639462
Pyrrhotite  (*)NickelineFe7S812195959056
Quartz  (*)QuartzSiO22219594,21959661156
Scheelite  (*)ScheeliteCa(WO4)12195964894
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)12195962705
Talc  (*)Clay TalcMg3Si4O10(OH)203337
Titanite  (*)TitaniteCaTi(SiO4)O12195964899
Violarite  (*)SpinelFeNi2S41219595380


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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