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:
Deer Isle, Hancock Co., Maine, USA

Oldest recorded age at locality: 800
Youngest recorded age at locality: 570

mindat Locality ID: 22865
mindat URL: http://www.mindat.org/loc-22865.html

Tectonic Settings:

Total number of sublocalities beneath "Deer Isle, Hancock Co., Maine, USA": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Deer Isle Mine
Deer Isle Town Quarry
Little Deer Isle
Verde Antique Quarry

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0
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 Ba C Ca Cr Cu F Fe H K Mg Mn Na O Pb S Si Zn 

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

Structural Groups for minerals in this locality: 
AmphiboleBaryteCalciteChalcopyriteClayCopperFluoriteNonePyritePyroxene
QuartzRhodoniteRocksaltSerpentineSphaleriteSpinelStilpnomelane

17 IMA Minerals at location:
Actinolite  (*)Antigorite  (*)Baryte  (*)Calcite  (*)Chalcopyrite  (*)
Chromite  (*)Diopside  (*)Fluorite  (*)Galena  (*)Magnetite  (*)
Pyrite  (*)Quartz  (*)Rhodochrosite  (*)Rhodonite  (*)Silver  (*)
Sphalerite  (*)Stilpnomelane  (*)
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)280057012170073419
Antigorite  (*)Serpentine ClayMg3Si2O5(OH)41217010708
Baryte  (*)BaryteBa(SO4)800570121700711547
Calcite  (*)CalciteCa(CO3)800570121700727770
Chalcopyrite  (*)ChalcopyriteCuFeS2800570121700727198
Chromite  (*)SpinelFe2+Cr2O48005702217007,2170093902
Diopside  (*)PyroxeneCaMgSi2O680057004135
Fluorite  (*)FluoriteCaF280057012170079617
Galena  (*)RocksaltPbS800570121700724243
Magnetite  (*)SpinelFe2+Fe3+2O48005702217007,21700914899
Pyrite  (*)PyriteFeS2800570121700739462
Quartz  (*)QuartzSiO2800570121700761156
Rhodochrosite  (*)CalciteMn(CO3)80057012170071711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)8005701217007969
Silver  (*)CopperAg80057012170075186
Sphalerite  (*)SphaleriteZnS800570121700721482
Stilpnomelane  (*)Stilpnomelane Clay(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O8005701217007456


1 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
vms-01056800570Precambrian Z (570-800 Ma)       S7595Deer Isle Mine, Deer Isle, Hancock Co., Maine, USADeer IsleMoiser et al. (2009) USGSOFR2009_1034 

SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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