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:
Louisville, Carroll Co., Maryland, USA


mindat Locality ID: 232882
mindat URL: http://www.mindat.org/loc-232882.html

Tectonic Settings:

Total number of sublocalities beneath "Louisville, Carroll Co., Maryland, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Mineral Hill Mine

Latitude: 39°26'11"N
Longitude: 76°55'53"W
Decimal Degree (lat, lon): 39.436388888889,-76.931388888889
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 Au C Ca Co Cr Cu Fe H K Mg Ni O P S Si Ti Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneAmphiboleBrochantiteCalciteChalcanthiteChalcopyriteClayClinozoisiteCopperCorundum
CovelliteDiasporeEpidoteMalachiteMelanteriteMicaNonePyritePyroxeneQuartz
SphaleriteSpinelTalc

36 IMA Minerals at location:
Actinolite  (*)Augite  (*)Bornite  (*)Brochantite  (*)Calcite  (*)
Carrollite  (*)Chalcanthite  (*)Chalcocite  (*)Chalcopyrite  (*)Chromite  (*)
Chrysocolla  (*)Covellite  (*)Dolomite  (*)Epidote  (*)Gahnite  (*)
Goethite  (*)Gold  (*)Hematite  (*)Ilmenite  (*)Linnaeite  (*)
Magnetite  (*)Malachite  (*)Melanterite  (*)Muscovite  (*)Pseudomalachite  (*)
Pyrite  (*)Quartz  (*)Siderite  (*)Siegenite  (*)Sphalerite  (*)
Spinel  (*)Talc  (*)Tenorite  (*)Tremolite  (*)Violarite  (*)
Zoisite  (*)
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)212186133419
Augite  (*)Pyroxene(Ca,Mg,Fe)2Si2O612186132060
Bornite  (*)NoneCu5FeS412186135516
Brochantite  (*)BrochantiteCu4(SO4)(OH)612186131633
Calcite  (*)CalciteCa(CO3)121861327770
Carrollite  (*)SpinelCuCo2S41218613154
Chalcanthite  (*)ChalcanthiteCu(SO4)·5H2O1218613925
Chalcocite  (*)NoneCu2S12186135707
Chalcopyrite  (*)ChalcopyriteCuFeS2121861327198
Chromite  (*)SpinelFe2+Cr2O412186133902
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O12186133531
Covellite  (*)CovelliteCuS12186134165
Dolomite  (*)NoneCaMg(CO3)212186139895
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)12186138173
Gahnite  (*)SpinelZnAl2O41218613445
Goethite  (*)DiasporeFeO(OH)12186137437
Gold  (*)CopperAu121861330554
Hematite  (*)CorundumFe2O3121861314640
Ilmenite  (*)CorundumFe2+Ti4+O312186135433
Linnaeite  (*)SpinelCo2+Co3+2S41218613249
Magnetite  (*)SpinelFe2+Fe3+2O4121861314899
Malachite  (*)MalachiteCu2(CO3)(OH)2121861312537
Melanterite  (*)MelanteriteFe(SO4)·7H2O1218613915
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2121861317380
Pseudomalachite  (*)NoneCu5(PO4)2(OH)41218613369
Pyrite  (*)PyriteFeS2121861339462
Quartz  (*)QuartzSiO2121861361156
Siderite  (*)CalciteFe(CO3)12186136417
Siegenite  (*)SpinelCoNi2S41218613249
Sphalerite  (*)SphaleriteZnS121861321482
Spinel  (*)SpinelMgAl2O412186131934
Talc  (*)Clay TalcMg3Si4O10(OH)212186133337
Tenorite  (*)NoneCuO12186131101
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)212186132562
Violarite  (*)SpinelFeNi2S41218613380
Zoisite  (*)EpidoteCa2Al3[Si2O7][SiO4]O(OH)12186131025


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

All locality data graciously provided by mindat.org

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