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:
Skytop, State College, Centre Co., Pennsylvania, USA


mindat Locality ID: 242438
mindat URL: http://www.mindat.org/loc-242438.html

Tectonic Settings:

Total number of sublocalities beneath "Skytop, State College, Centre Co., Pennsylvania, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Interstate 99 Skytop Roadcut

Latitude: 40°50'0"N
Longitude: 77°58'"W
Decimal Degree (lat, lon): 40.833333333333,-77.966666666667
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 Ba C Ca Ce Cu Fe H K Mg Na O P Pb S Si Ti Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AluniteAragoniteBaryteCalciteChalcopyriteCopiapiteCoronaditeCorundumDiasporeEpsomite
GypsumHalotrichiteHexahydriteMarcasiteMelanteriteMonaziteNickelineNolaniteNoneNot in a structural group
PyriteQuartzRocksaltRutileSphaleriteStarkeyiteWavelliteZircon

34 IMA Minerals at location:
Alunogen  (*)Anglesite  (*)Ankerite  (*)Baryte  (*)Calcite  (*)
Cerussite  (*)Chalcopyrite  (*)Copiapite  (*)Epsomite  (*)Ferrihydrite  (*)
Galena  (*)Goethite  (*)Gypsum  (*)Halotrichite  (*)Hematite  (*)
Hexahydrite  (*)Jarosite  (*)Marcasite  (*)Melanterite  (*)Monazite-(Ce)  (*)
Pickeringite  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)Rozenite  (*)
Rutile  (*)Schwertmannite  (*)Sphalerite  (*)Thénardite  (*)Variscite  (*)
Wattevilleite  (*)Wavellite  (*)Woodhouseite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Alunogen  (*)Not in a structural groupAl2(SO4)3(H2O)12·5H2O1262660272
Anglesite  (*)BarytePb(SO4)12626602734
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)212626603092
Baryte  (*)BaryteBa(SO4)126266011547
Calcite  (*)CalciteCa(CO3)126266027770
Cerussite  (*)AragonitePb(CO3)12626604979
Chalcopyrite  (*)ChalcopyriteCuFeS2126266027198
Copiapite  (*)CopiapiteFe2+Fe3+4(SO4)6(OH)2·20H2O1262660382
Epsomite  (*)EpsomiteMg(SO4)·7H2O1262660484
Ferrihydrite  (*)NolaniteFe3+10O14(OH)2126266086
Galena  (*)RocksaltPbS126266024243
Goethite  (*)DiasporeFeO(OH)12626607437
Gypsum  (*)GypsumCa(SO4)·2H2O12626606890
Halotrichite  (*)HalotrichiteFe2+Al2(SO4)4·22H2O1262660409
Hematite  (*)CorundumFe2O3126266014640
Hexahydrite  (*)HexahydriteMg(SO4)·6H2O1262660251
Jarosite  (*)AluniteKFe3+3(SO4)2(OH)612626602228
Marcasite  (*)MarcasiteFeS212626605674
Melanterite  (*)MelanteriteFe(SO4)·7H2O1262660915
Monazite-(Ce)  (*)MonaziteCe(PO4)1262660945
Pickeringite  (*)HalotrichiteMgAl2(SO4)4·22H2O1262660265
Pyrite  (*)PyriteFeS2126266039462
Pyrrhotite  (*)NickelineFe7S812626609056
Quartz  (*)QuartzSiO2126266061156
Rozenite  (*)StarkeyiteFe2+(SO4)·4H2O1262660293
Rutile  (*)RutileTiO212626605614
Schwertmannite  (*)CoronaditeFe3+16O16(OH)9.6(SO4)3.2·10H2O126266037
Sphalerite  (*)SphaleriteZnS126266021482
Thénardite  (*)NoneNa2(SO4)1262660299
Variscite  (*)NoneAl(PO4)·2H2O1262660301
Wattevilleite  (*)NoneNa2Ca(SO4)2·4H2O (?)126266010
Wavellite  (*)WavelliteAl3(PO4)2(OH)3·5H2O1262660374
Woodhouseite  (*)AluniteCaAl3(SO4)(PO4)(OH)6126266062
Zircon  (*)ZirconZr(SiO4)12626605251


No ages have been assigned to this locality yet.
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All locality data graciously provided by mindat.org

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