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:
Brooksville, Hancock Co., Maine, USA

Oldest recorded age at locality: 448.07
Youngest recorded age at locality: 380.07

mindat Locality ID: 24316
mindat URL: http://www.mindat.org/loc-24316.html

Tectonic Settings:

Total number of sublocalities beneath "Brooksville, Hancock Co., Maine, USA": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Callahan Mine (Harborside Mine; Cape Rosier Mine; Rosier Consolidated Mine)
Jones Mine
Perkins Mine

Latitude: 44°20'46"N
Longitude: 68°48'26"W
Decimal Degree (lat, lon): 44.346111111111,-68.807222222222

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 Au Bi C Ca Cd Cl Co Cu Fe H K Mg Na Ni O Pb S Si Ti Zn 

Elements from minerals reported directly at this locality: Ca Fe Mg O Si 

Structural Groups for minerals in this locality: 
AllophaneAmphiboleAragoniteArsenicArsenopyriteBaryteBrochantiteCalciteChalcophylliteChalcopyrite
ClayCopperCorundumCovelliteCubaniteDevillineDiasporeGypsumLöllingiteLinarite
MalachiteMarcasiteMicaNickelineNoneNot in a structural groupPyritePyroxeneQuartzRocksalt
SphaleriteSulphurTalcTetrahedriteTitaniteValleriiteWurtzite

51 IMA Minerals at location:
Allophane  (*)Anglesite  (*)Aragonite  (*)Arsenopyrite  (*)Augite  (*)
Aurichalcite  (*)Azurite  (*)Bismuth  (*)Bornite  (*)Brochantite  (*)
Calcite  (*)Cerussite  (*)Chalcocite  (*)Chalcophyllite  (*)Chalcopyrite  (*)
Chrysocolla  (*)Copper  (*)Covellite  (*)Cubanite  (*)Cuprite  (*)
Galena  (*)Goethite  (*)Gold  (*)Greenockite  (*)Gypsum  (*)
Halite  (*)Hematite  (*)Hemimorphite  (*)Hydrozincite  (*)Laumontite  (*)
Linarite  (*)Mackinawite  (*)Malachite  (*)Marcasite  (*)Muscovite  (*)
Pigeonite  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Rosasite  (*)
Safflorite  (*)Serpierite  (*)Siderite  (*)Smithsonite  (*)Sphalerite  (*)
Sulphur  (*)Talc  (*)Tennantite-(Fe)  (*)Titanite  (*)Tremolite  (*)
Valleriite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Allophane  (*)AllophaneAl2O3(SiO2)1.3-2.0·2.5-3.0H2O448.07380.071216994470
Anglesite  (*)BarytePb(SO4)448.07380.0712169942734
Aragonite  (*)AragoniteCa(CO3)448.07380.0712169943250
Arsenopyrite  (*)ArsenopyriteFeAsS448.07380.0712169949052
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O6448.07380.0702060
Aurichalcite  (*)None(Zn,Cu)5(CO3)2(OH)6448.07380.071216994919
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)2448.07380.0712169945509
Bismuth  (*)ArsenicBi448.07380.0712169941966
Bornite  (*)NoneCu5FeS4448.07380.0712169945516
Brochantite  (*)BrochantiteCu4(SO4)(OH)6448.07380.0712169941633
Calcite  (*)CalciteCa(CO3)448.07380.07121699427770
Cerussite  (*)AragonitePb(CO3)448.07380.0712169944979
Chalcocite  (*)NoneCu2S448.07380.0712169945707
Chalcophyllite  (*)ChalcophylliteCu18Al2(AsO4)4(SO4)3(OH)24·36H2O448.07380.071216994194
Chalcopyrite  (*)ChalcopyriteCuFeS2448.07380.07121699427198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O448.07380.0712169943531
Copper  (*)CopperCu448.07380.0712169943846
Covellite  (*)CovelliteCuS448.07380.0712169944165
Cubanite  (*)Cubanite WurtziteCuFe2S3448.07380.071216994802
Cuprite  (*)Not in a structural groupCu2O448.07380.0712169942970
Galena  (*)RocksaltPbS448.07380.073216994,216995,21699624243
Goethite  (*)DiasporeFeO(OH)448.07380.0712169947437
Gold  (*)CopperAu448.07380.07121699430554
Greenockite  (*)WurtziteCdS448.07380.071216994717
Gypsum  (*)GypsumCa(SO4)·2H2O448.07380.0712169946890
Halite  (*)RocksaltNaCl448.07380.0712169941398
Hematite  (*)CorundumFe2O3448.07380.07121699414640
Hemimorphite  (*)Not in a structural groupZn4(Si2O7)(OH)2·H2O448.07380.0712169941689
Hydrozincite  (*)NoneZn5(CO3)2(OH)6448.07380.0712169941066
Laumontite  (*)Not in a structural groupCaAl2Si4O12·4H2O448.07380.0712169941271
Linarite  (*)LinariteCuPb(SO4)(OH)2448.07380.071216994987
Mackinawite  (*)None(Fe,Ni)1+xS (x = 0-0.07)448.07380.071216994451
Malachite  (*)MalachiteCu2(CO3)(OH)2448.07380.07121699412537
Marcasite  (*)MarcasiteFeS2448.07380.0712169945674
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2448.07380.07121699417380
Pigeonite  (*)Pyroxene(Mg,Fe,Ca)2Si2O6448.07380.070303
Pyrite  (*)PyriteFeS2448.07380.073216994,216995,21699639462
Pyrrhotite  (*)NickelineFe7S8448.07380.0712169949056
Quartz  (*)QuartzSiO2448.07380.073216994,216995,21699661156
Rosasite  (*)MalachiteCuZn(CO3)(OH)2448.07380.071216994454
Safflorite  (*)LöllingiteCoAs2448.07380.071216994317
Serpierite  (*)DevillineCa(Cu,Zn)4(SO4)2(OH)6·3H2O448.07380.071216994292
Siderite  (*)CalciteFe(CO3)448.07380.0712169946417
Smithsonite  (*)CalciteZn(CO3)448.07380.0712169942473
Sphalerite  (*)SphaleriteZnS448.07380.07121699421482
Sulphur  (*)SulphurS448.07380.0712169942045
Talc  (*)Clay TalcMg3Si4O10(OH)2448.07380.0712169943337
Tennantite-(Fe)  (*)TetrahedriteCu6(Cu4Fe2)As4S13448.07380.0712169941803
Titanite  (*)TitaniteCaTi(SiO4)O448.07380.0712169944899
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2448.07380.0712169942562
Valleriite  (*)Valleriite2[(Fe,Cu)S]·1.53[(Mg,Al)(OH)2]448.07380.071216994237



2 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
USGS-Rb-Sr-01985448.07380.07414.07±34Rb-Sr whole rock     6037Callahan Mine (Harborside Mine; Cape Rosier Mine; Rosier Consolidated Mine), Brooksville, Hancock Co., Maine, USA USGS-Rb-Sr USGS-Rb-Sr 
USGS-Rb-Sr-01986448.07380.07414.07±34Rb-Sr whole rock     6037Callahan Mine (Harborside Mine; Cape Rosier Mine; Rosier Consolidated Mine), Brooksville, Hancock Co., Maine, USA USGS-Rb-Sr USGS-Rb-Sr 


SampleSource LocalityReference URL


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