Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

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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:
Holden, Worcester Co., Massachusetts, USA


mindat Locality ID: 24337
mindat URL: http://www.mindat.org/loc-24337.html

Tectonic Settings:

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

Number of Child Localities: 3
Child Localities:
Holden Spodumene Locality
Holden Trap Rock Co. Quarry
Quabbin Aqueduct Shaft #2 Locality

Latitude: 42°22'25"N
Longitude: 71°52'21"W
Decimal Degree (lat, lon): 42.373611111111,-71.8725
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 Be C Ca F Fe H K Li Mg Na O P S Si Ti 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
ApatiteCalciteClayClinozoisiteCorundumEpidoteFeldsparFluoriteGarnetHalotrichite
MicaNoneNot in a structural groupPyritePyroxeneQuartzSpinel

16 IMA Minerals at location:
Albite  (*)Almandine  (*)Bertrandite  (*)Calcite  (*)Epidote  (*)
Fluorapatite  (*)Fluorite  (*)Ilmenite  (*)Magnetite  (*)Microcline  (*)
Muscovite  (*)Pickeringite  (*)Pyrite  (*)Quartz  (*)Siderite  (*)
Spodumene  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)12198438803
Almandine  (*)GarnetFe2+3Al2(SiO4)312198432353
Bertrandite  (*)Not in a structural groupBe4Si2O7(OH)21219843606
Calcite  (*)CalciteCa(CO3)121984327770
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)12198438173
Fluorapatite  (*)ApatiteCa5(PO4)3F12198432740
Fluorite  (*)FluoriteCaF212198439617
Ilmenite  (*)CorundumFe2+Ti4+O312198435433
Magnetite  (*)SpinelFe2+Fe3+2O4121984314899
Microcline  (*)FeldsparK(AlSi3O8)12198434924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2121984317380
Pickeringite  (*)HalotrichiteMgAl2(SO4)4·22H2O1219843265
Pyrite  (*)PyriteFeS2121984339462
Quartz  (*)QuartzSiO2121984361156
Siderite  (*)CalciteFe(CO3)12198436417
Spodumene  (*)PyroxeneLiAlSi2O61219841688


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

All locality data graciously provided by mindat.org

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