Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org

Important Update News

The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.

The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.

We are grateful to NASA for the funding of this effort.




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:
Phelps Co., Missouri, USA


mindat Locality ID: 29463
mindat URL: http://www.mindat.org/loc-29463.html

Tectonic Settings:

Total number of sublocalities beneath "Phelps Co., Missouri, USA": 37
Total number of bottom-level sublocalities: 35

Number of Child Localities: 35
Child Localities:
African Mine
Agricultural College Land
Beaver Creek Mine
Brady Mine
Buckland Mine
Burns Mine
Clark Mine
Clinton Mine
Crisp Mine
DeCamp Mine
Hyer Mine
Kelly Mine No.1 (Kelley Mine No.1)
Kelly Mine No.2
Kelly Mine No.3
Lamb Mine
Lenox Mine
Little Piney Bank No.1
Little Piney Bank No.2
Maramec Mine
Moselle No. 10 Mine
Moselle No. 9 Mine
Newburg
Ozark Branch Bank
Reed Mine
Rolla
Santee And Clark Mine
Smith Bank
Smith Mine (Smith Mines No.1)
South Mountain Mine
Stimson Mine
Strahan Land
Strawhun Bank
Taylors Rolla Mine
Thornton Dowling Mine
Williford Mine

Latitude: 37°53'23"N
Longitude: 91°41'18"W
Decimal Degree (lat, lon): 37.889722222222,-91.688333333333

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 Ba C Ca Cu Fe H Mg O S Si 

Elements from minerals reported directly at this locality: Al H O 

Structural Groups for minerals in this locality: 
ArsenopyriteBaryteCalciteChalcanthiteChalcopyriteClayCopiapiteCopperCorundumDiaspore
KaoliniteMalachiteMarcasiteMelanteriteNoneNot in a structural groupPyriteQuartz

20 IMA Minerals at location:
Ankerite  (*)Arsenopyrite  (*)Azurite  (*)Baryte  (*)Calcite  (*)
Chalcanthite  (*)Chalcopyrite  (*)Copiapite  (*)Copper  (*)Diaspore  (*)
Dolomite  (*)Goethite  (*)Hematite  (*)Kaolinite  (*)Malachite  (*)
Marcasite  (*)Melanterite  (*)Pyrite  (*)Quartz  (*)Siderite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)212258063092
Arsenopyrite  (*)ArsenopyriteFeAsS12258229052
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)23225810,225811,2258215509
Baryte  (*)BaryteBa(SO4)122582811547
Calcite  (*)CalciteCa(CO3)2225806,22582827770
Chalcanthite  (*)ChalcanthiteCu(SO4)·5H2O2225806,225821925
Chalcopyrite  (*)ChalcopyriteCuFeS22225821,22582227198
Copiapite  (*)CopiapiteFe2+Fe3+4(SO4)6(OH)2·20H2O2225806,225821382
Copper  (*)CopperCu2225821,2258333846
Diaspore  (*)DiasporeAlO(OH)0481
Dolomite  (*)NoneCaMg(CO3)26225803,225806,225821,225829,225833,2258349895
Goethite  (*)DiasporeFeO(OH)4225811,225820,225821,2258247437
Hematite  (*)CorundumFe2O317225806,225807,225809,225810,225811,225812,225813,225814,225817,225820,225821,225822,225829,225830,225832,225833,22583814640
Kaolinite  (*)Clay KaoliniteAl2Si2O5(OH)412258065591
Malachite  (*)MalachiteCu2(CO3)(OH)24225810,225811,225821,22583312537
Marcasite  (*)MarcasiteFeS24225806,225811,225821,2258285674
Melanterite  (*)MelanteriteFe(SO4)·7H2O1225821915
Pyrite  (*)PyriteFeS26225806,225813,225814,225821,225822,22582839462
Quartz  (*)QuartzSiO25225806,225811,225820,225821,22582261156
Siderite  (*)CalciteFe(CO3)12258206417



No ages have been assigned to this locality yet.

SampleSource LocalityReference URL


All locality data graciously provided by mindat.org

All age data...

Other copyright data...