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:
Plainfield, Hampshire Co., Massachusetts, USA


mindat Locality ID: 233260
mindat URL: http://www.mindat.org/loc-233260.html

Tectonic Settings:

Total number of sublocalities beneath "Plainfield, Hampshire Co., Massachusetts, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Betts Manganese Mines (Anson Betts Mine; Plainfield Manganese Mines)

Latitude: 42°29'40"N
Longitude: 72°56'42"W
Decimal Degree (lat, lon): 42.494444444444,-72.945
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 Ba C Ca Co Cu F Fe H K Mg Mn Mo O P Pb S Si Ti W Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneAmphiboleApatiteArsenopyriteBaryteCalciteChalcopyriteChloriteClayClinozoisite
CobaltiteColumbiteCopperCoronaditeCorundumEpidoteFluoriteGarnetGypsumHumite
LöllingiteMarcasiteMicaMolybdeniteNickelineNoneOlivinePyritePyrosmaliteQuartz
RhodoniteRocksaltRutileScheeliteSerpentineSphaleriteSpinel

49 IMA Minerals at location:
Actinolite  (*)Alabandite  (*)Alleghanyite  (*)Arsenopyrite  (*)Bafertisite  (*)
Baryte  (*)Bementite  (*)Caryopilite  (*)Chalcopyrite  (*)Clinochlore  (*)
Cobaltite  (*)Cryptomelane  (*)Cummingtonite  (*)Epidote  (*)Ferro-hornblende  (*)
Fluorapatite  (*)Fluorite  (*)Galena  (*)Gold  (*)Grunerite  (*)
Gypsum  (*)Hematite  (*)Hübnerite  (*)Ilmenite  (*)Jacobsite  (*)
Kutnohorite  (*)Löllingite  (*)Magnetite  (*)Marcasite  (*)Molybdenite  (*)
Muscovite  (*)Neotocite  (*)Pyrite  (*)Pyrolusite  (*)Pyrophanite  (*)
Pyrrhotite  (*)Quartz  (*)Ranciéite  (*)Rhodochrosite  (*)Rhodonite  (*)
Rutile  (*)Schallerite  (*)Scheelite  (*)Silver  (*)Sonolite  (*)
Spessartine  (*)Sphalerite  (*)Takanelite  (*)Tephroite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)212195603419
Alabandite  (*)RocksaltMnS1219560312
Alleghanyite  (*)HumiteMn2+5(SiO4)2(OH)2121956077
Arsenopyrite  (*)ArsenopyriteFeAsS12195609052
Bafertisite  (*)NoneBa2Fe2+4Ti2(Si2O7)2O2(OH)2F2121956016
Baryte  (*)BaryteBa(SO4)121956011547
Bementite  (*)ClayMn7Si6O15(OH)81219560173
Caryopilite  (*)Clay SerpentineMn2+3Si2O5(OH)4121956083
Chalcopyrite  (*)ChalcopyriteCuFeS2121956027198
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)812195601756
Cobaltite  (*)CobaltiteCoAsS1219560966
Cryptomelane  (*)CoronaditeK(Mn4+7Mn3+)O161219560599
Cummingtonite  (*)Amphibole   Mg2Mg5Si8O22(OH)21219560327
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)12195608173
Ferro-hornblende  (*)Amphibole   Ca2(Fe2+4Al)(Si7Al)O22(OH)21219560271
Fluorapatite  (*)ApatiteCa5(PO4)3F12195602740
Fluorite  (*)FluoriteCaF212195609617
Galena  (*)RocksaltPbS121956024243
Gold  (*)CopperAu121956030554
Grunerite  (*)Amphibole   Fe2+2Fe2+5Si8O22(OH)21219560223
Gypsum  (*)GypsumCa(SO4)·2H2O12195606890
Hematite  (*)CorundumFe2O3121956014640
Hübnerite  (*)ColumbiteMn2+(WO4)1219560469
Ilmenite  (*)CorundumFe2+Ti4+O312195605433
Jacobsite  (*)SpinelMn2+Fe3+2O41219560172
Kutnohorite  (*)NoneCaMn2+(CO3)21219560234
Löllingite  (*)LöllingiteFeAs21219560762
Magnetite  (*)SpinelFe2+Fe3+2O4121956014899
Marcasite  (*)MarcasiteFeS212195605674
Molybdenite  (*)MolybdeniteMoS212195605800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2121956017380
Neotocite  (*)Allophane(Mn,Fe)SiO3·H2O (?)1219560186
Pyrite  (*)PyriteFeS2121956039462
Pyrolusite  (*)RutileMnO212195603106
Pyrophanite  (*)CorundumMn2+TiO31219560244
Pyrrhotite  (*)NickelineFe7S812195609056
Quartz  (*)QuartzSiO2121956061156
Ranciéite  (*)None(Ca,Mn2+)0.2(Mn4+,Mn3+)O2·0.6H2O1219560177
Rhodochrosite  (*)CalciteMn(CO3)12195601711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)1219560969
Rutile  (*)RutileTiO212195605614
Schallerite  (*)Pyrosmalite ClayMn2+16As3+3Si12O36(OH)1712195608
Scheelite  (*)ScheeliteCa(WO4)12195604894
Silver  (*)CopperAg12195605186
Sonolite  (*)HumiteMn2+9(SiO4)4(OH)2121956050
Spessartine  (*)GarnetMn2+3Al2(SiO4)312195601214
Sphalerite  (*)SphaleriteZnS121956021482
Takanelite  (*)None(Mn2+,Ca)2x(Mn4+)1-xO2·0.7H2O121956018
Tephroite  (*)OlivineMn2+2(SiO4)1219560240


No ages have been assigned to this locality yet.
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