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:
Rumford, Oxford Co., Maine, USA


mindat Locality ID: 6289
mindat URL: http://www.mindat.org/loc-6289.html

Tectonic Settings:

Total number of sublocalities beneath "Rumford, Oxford Co., Maine, USA": 24
Total number of bottom-level sublocalities: 24

Number of Child Localities: 24
Child Localities:
Bean Mountain "Gold" Mine
Belleveau Prospect
Black Mountain Quarry (Black Mountain Pegmatite)
Brown Thurston Prospect
Carver Prospect
Frank Perham Prospect
George Elliot Quarry (North Rumford Mica Quarry)
Goddard Ledge Quarry (Ford Hill Quarry; Roy Ledge Quarry; Silver Ledge Quarry)
Howe Hill Locality
Howe Hill Nickel Mine
John Ladd Quarry
Leach Prospect
Lookout Quarry
Lower Prospects
Paint Mine
Pechnic Prospect
Red Hill Quarries
Rumford Falls
Ski Slope Hill
South Twin Mountain Locality
Swain's Notch Quartz Crystal Locality
Whitecap Mountain Localities
Whitehall Prospects
Whitehall Quarry

Latitude: 44°33'34"N
Longitude: 70°41'45"W
Decimal Degree (lat, lon): 44.559444444444,-70.695833333333
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 As B Ba Be C Ca Cs Cu F Fe H K Li Mg Mn Na Nb O P S Si Sn Sr Ta Ti U Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AluniteAmorphousAnalcimeApatiteArrojaditeArseniosideriteArsenopyriteAutuniteBerauniteBeryl
BerylloniteCalciteChalcopyriteChildreniteChloriteClayColumbiteCoronaditeCorundumDanburite
DiasporeFairfielditeFeldsparFluoriteGadoliniteGarnetHureauliteJahnsiteLöllingiteLaueite
Meta-autuniteMicaNickelineNoneNot in a structural groupOlivinePhosphophyllitePhosphosideritePhosphuranylitePyrite
PyroxeneQuartzRockbridgeiteRoscheriteRutileScapoliteSmectite-vermiculiteSphaleriteSpinelStrunzite
TitaniteTourmalineVesuvianiteVivianiteZircon

82 IMA Minerals at location:
Albite  (*)Almandine  (*)Amblygonite  (*)Annite  (*)Arsenopyrite  (*)
Autunite  (*)Beraunite  (*)Bertrandite  (*)Beryl  (*)Beryllonite  (*)
Calcite  (*)Cassiterite  (*)Chalcopyrite  (*)Chamosite  (*)Childrenite  (*)
Columbite-(Fe)  (*)Columbite-(Mn)  (*)Cookeite  (*)Cryptomelane  (*)Diadochite  (*)
Dickinsonite-(KMnNa)  (*)Diopside  (*)Dravite  (*)Elbaite  (*)Eosphorite  (*)
Fairfieldite  (*)Fluorapatite  (*)Goethite  (*)Goyazite  (*)Greifensteinite  (*)
Grossular  (*)Hematite  (*)Heterosite  (*)Hureaulite  (*)Hurlbutite  (*)
Hydroxylapatite  (*)Hydroxylherderite  (*)Jahnsite-(CaMnFe)  (*)Kosnarite  (*)Laueite  (*)
Löllingite  (*)Ludlamite  (*)Magnetite  (*)Meionite  (*)Messelite  (*)
Meta-autunite  (*)Metatorbernite  (*)Microcline  (*)Mitridatite  (*)Montebrasite  (*)
Montmorillonite  (*)Muscovite  (*)Nontronite  (*)Opal  (*)Phosphophyllite  (*)
Phosphosiderite  (*)Phosphuranylite  (*)Pollucite  (*)Purpurite  (*)Pyrite  (*)
Pyrrhotite  (*)Quartz  (*)Rhodochrosite  (*)Rockbridgeite  (*)Roscherite  (*)
Rossmanite  (*)Schorl  (*)Siderite  (*)Sphalerite  (*)Spodumene  (*)
Strunzite  (*)Tantalite-(Mn)  (*)Titanite  (*)Todorokite  (*)Torbernite  (*)
Triphylite  (*)Uraninite  (*)Uranophane-α  (*)Vesuvianite  (*)Vivianite  (*)
Wodginite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)13217469,217470,217472,217473,217474,217475,217477,217478,217479,217482,217483,217487,2174888803
Almandine  (*)GarnetFe2+3Al2(SiO4)312217468,217469,217470,217472,217473,217474,217475,217479,217482,217488,217489,2174902353
Amblygonite  (*)NoneLiAl(PO4)F1217469244
Annite  (*)Mica ClayKFe2+3(AlSi3O10)(OH)21217479356
Arsenopyrite  (*)ArsenopyriteFeAsS12174889052
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O2217469,2174721272
Beraunite  (*)BerauniteFe3+6(PO4)4O(OH)4·6H2O2217479,217483136
Bertrandite  (*)Not in a structural groupBe4Si2O7(OH)21217479606
Beryl  (*)BerylBe3Al2Si6O1812217468,217469,217470,217471,217473,217474,217477,217478,217479,217483,217488,2174904286
Beryllonite  (*)BerylloniteNaBe(PO4)121746947
Calcite  (*)CalciteCa(CO3)2217476,21748427770
Cassiterite  (*)RutileSnO22217469,2174705171
Chalcopyrite  (*)ChalcopyriteCuFeS2121747927198
Chamosite  (*)Chlorite Clay(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)81217479577
Childrenite  (*)ChildreniteFe2+Al(PO4)(OH)2·H2O2217479,21748393
Columbite-(Fe)  (*)ColumbiteFe2+Nb2O65217469,217472,217479,217482,217483518
Columbite-(Mn)  (*)ColumbiteMn2+Nb2O61217469289
Cookeite  (*)Chlorite Clay(Al,Li)3Al2(Si,Al)4O10(OH)81217469181
Cryptomelane  (*)CoronaditeK(Mn4+7Mn3+)O161217479599
Diadochite  (*)AmorphousFe3+2(PO4)(SO4)(OH)·6H2O2217479,21748381
Dickinsonite-(KMnNa)  (*)ArrojaditeK(NaMn)CaNa3AlMn13(PO4)12(OH)2121746926
Diopside  (*)PyroxeneCaMgSi2O612174844135
Dravite  (*)TourmalineNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)1217469648
Elbaite  (*)TourmalineNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3(OH)1217469520
Eosphorite  (*)ChildreniteMn2+Al(PO4)(OH)2·H2O2217469,217483128
Fairfieldite  (*)FairfielditeCa2Mn2+(PO4)2·2H2O2217469,21747472
Fluorapatite  (*)ApatiteCa5(PO4)3F8217469,217472,217473,217474,217479,217482,217483,2174882740
Goethite  (*)DiasporeFeO(OH)12174797437
Goyazite  (*)AluniteSrAl3(PO4)(PO3OH)(OH)62217469,217474173
Greifensteinite  (*)RoscheriteCa2Be4Fe2+5(PO4)6(OH)4·6H2O121746927
Grossular  (*)GarnetCa3Al2(SiO4)32217484,2174851544
Hematite  (*)CorundumFe2O32217479,21748114640
Heterosite  (*)OlivineFe3+(PO4)5217469,217470,217472,217479,217483204
Hureaulite  (*)HureauliteMn2+5(PO3OH)2(PO4)2·4H2O1217479125
Hurlbutite  (*)DanburiteCaBe2(PO4)2121746914
Hydroxylapatite  (*)ApatiteCa5(PO4)3OH2217469,217479367
Hydroxylherderite  (*)GadoliniteCaBe(PO4)(OH)2217469,217479119
Jahnsite-(CaMnFe)  (*)JahnsiteCaMn2+Fe2+2Fe3+2(PO4)4(OH)2·8H2O121748327
Kosnarite  (*)NoneKZr2(PO4)312174697
Laueite  (*)LaueiteMn2+Fe3+2(PO4)2(OH)2·8H2O2217474,21747970
Löllingite  (*)LöllingiteFeAs21217470762
Ludlamite  (*)NoneFe2+3(PO4)2·4H2O121747966
Magnetite  (*)SpinelFe2+Fe3+2O42217469,21747914899
Meionite  (*)ScapoliteCa4Al6Si6O24(CO3)1217484176
Messelite  (*)FairfielditeCa2Fe2+(PO4)2·2H2O121747943
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O2217469,217472388
Metatorbernite  (*)NoneCu(UO2)2(PO4)2·8H2O1217469443
Microcline  (*)FeldsparK(AlSi3O8)17217468,217469,217470,217471,217472,217474,217475,217477,217478,217479,217482,217483,217486,217487,217488,217489,2174904924
Mitridatite  (*)ArseniosideriteCa2Fe3+3O2(PO4)3·3H2O2217469,217479129
Montebrasite  (*)NoneLiAl(PO4)(OH)2217469,217474200
Montmorillonite  (*)Clay Smectite-vermiculite(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O12174691508
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)218217468,217469,217470,217471,217472,217473,217474,217475,217477,217478,217479,217482,217483,217486,217487,217488,217489,21749017380
Nontronite  (*)Clay Smectite-vermiculiteNa0.3Fe3+2(Si,Al)4O10(OH)2·nH2O2217469,217479471
Opal  (*)AmorphousSiO2·nH2O12174692994
Phosphophyllite  (*)PhosphophylliteZn2Fe2+(PO4)2·4H2O2217479,21748329
Phosphosiderite  (*)PhosphosideriteFe3+(PO4)·2H2O1217479182
Phosphuranylite  (*)PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4·8H2O1217469182
Pollucite  (*)AnalcimeCs(Si2Al)O6·nH2O1217469140
Purpurite  (*)OlivineMn3+(PO4)121747080
Pyrite  (*)PyriteFeS29217469,217472,217473,217474,217476,217479,217482,217483,21748439462
Pyrrhotite  (*)NickelineFe7S82217476,2174799056
Quartz  (*)QuartzSiO221217467,217468,217469,217470,217471,217472,217473,217474,217475,217476,217477,217478,217479,217482,217483,217484,217486,217487,217488,217489,21749061156
Rhodochrosite  (*)CalciteMn(CO3)12174691711
Rockbridgeite  (*)Rockbridgeite(Fe2+0.5Fe3+0.5)2Fe3+3(PO4)3(OH)53217469,217479,217483206
Roscherite  (*)RoscheriteCa2Mn2+5Be4(PO4)6(OH)4·6H2O121746922
Rossmanite  (*)Tourmaline   (Al2Li)Al6(Si6O18)(BO3)3(OH)3(OH)121746937
Schorl  (*)TourmalineNaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)7217469,217472,217474,217475,217479,217482,2174882705
Siderite  (*)CalciteFe(CO3)5217469,217473,217474,217479,2174836417
Sphalerite  (*)SphaleriteZnS3217469,217474,21747921482
Spodumene  (*)PyroxeneLiAlSi2O62217469,217472688
Strunzite  (*)StrunziteMn2+Fe3+2(PO4)2(OH)2·6H2O3217469,217479,21748398
Tantalite-(Mn)  (*)ColumbiteMn2+Ta2O61217469211
Titanite  (*)TitaniteCaTi(SiO4)O2217469,2174844899
Todorokite  (*)None(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O2217469,217479433
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O2217469,2174791059
Triphylite  (*)OlivineLiFe2+(PO4)5217469,217472,217474,217479,217483313
Uraninite  (*)FluoriteUO23217469,217472,2174832718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O1217469890
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)1012174841395
Vivianite  (*)VivianiteFe2+3(PO4)2·8H2O4217469,217472,217479,217483636
Wodginite  (*)ColumbiteMn2+Sn4+Ta2O8121746978
Zircon  (*)ZirconZr(SiO4)2217469,2174795251


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL
R070308Black Mountain Quarry (Black Mountain Pegmatite), Rumford, Oxford Co., Maine, USAhttps://rruff.info/R070308

All locality data graciously provided by mindat.org

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