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:
Perus, São Paulo, São Paulo, Brazil

Oldest recorded age at locality: 670
Youngest recorded age at locality: 545

mindat Locality ID: 14756
mindat URL: http://www.mindat.org/loc-14756.html

Tectonic Settings:

Total number of sublocalities beneath "Perus, São Paulo, São Paulo, Brazil": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Jaraguá District
Pegmatite Quarries

Latitude: 23°25'38"S
Longitude: 46°45'37"W
Decimal Degree (lat, lon): -23.427222222222,-46.760277777778
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 Ba Be C Ca Cu F Fe H K Mg Mn Na O P S Si U 

Elements from minerals reported directly at this locality: C Ca F H O S 

Structural Groups for minerals in this locality: 
AmorphousAutuniteBerylCalciteClayCopperFeldsparFluoriteGypsumMeta-autunite
MicaNatroautuniteNonePhosphuranyliteQuartzSmectite-vermiculite

25 IMA Minerals at location:
Albite  (*)Autunite  (*)Bassetite  (*)Beryl  (*)Calcite  (*)
Chernikovite  (*)Fluorite  (*)Gold  (*)Gypsum  (*)Haiweeite  (*)
Meta-autunite  (*)Metatorbernite  (*)Metauranocircite-I  (*)Microcline  (*)Muscovite  (*)
Opal  (*)Uranophane-β  (*)Phosphuranylite  (*)Phurcalite  (*)Quartz  (*)
Rhodochrosite  (*)Saponite  (*)Torbernite  (*)Uranophane-α  (*)Weeksite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Albite  (*)FeldsparNa(AlSi3O8)6705451287368803
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O6705451287361272
Bassetite  (*)NoneFe2+(UO2)2(PO4)2(H2O)1067054512873651
Beryl  (*)BerylBe3Al2Si6O186705451287364286
Calcite  (*)CalciteCa(CO3)670545027770
Chernikovite  (*)Natroautunite(H3O)(UO2)(PO4)·3H2O67054512873621
Fluorite  (*)FluoriteCaF267054509617
Gold  (*)CopperAu12873530554
Gypsum  (*)GypsumCa(SO4)·2H2O67054506890
Haiweeite  (*)NoneCa(UO2)2(Si5O12)(OH)2·6H2O67054512873615
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O670545128736388
Metatorbernite  (*)NoneCu(UO2)2(PO4)2·8H2O670545128736443
Metauranocircite-I  (*)NoneBa(UO2)2(PO4)2·6H2O67054512873638
Microcline  (*)FeldsparK(AlSi3O8)6705451287364924
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)267054512873617380
Opal  (*)AmorphousSiO2·nH2O6705451287362994
Uranophane-β  (*)NoneCa(UO2)2(SiO3OH)2·5H2O670545128736144
Phosphuranylite  (*)PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4·8H2O670545128736182
Phurcalite  (*)PhosphuranyliteCa2(UO2)3O2(PO4)2·7H2O67054512873620
Quartz  (*)QuartzSiO2670545228735,2873661156
Rhodochrosite  (*)CalciteMn(CO3)6705451287361711
Saponite  (*)Clay Smectite-vermiculite(Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10(OH)2·4H2O670545128736301
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O6705451287361059
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O670545128736890
Weeksite  (*)None(K)2(UO2)2(Si5O13)·4H2O67054512873642


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Giersdorf_00000846Secondary uranium phosphates and silicates occur as placoid crystals and crusts, colored green to yellow, filling fractures in the tourmaline-bearing granitic pegmatite of Perus, northwestern part of the city of São Paulo, southeastern Brazil
Giersdorf_00000847Secondary uranium phosphates and silicates occur as placoid crystals and crusts, colored green to yellow, filling fractures in the tourmaline-bearing granitic pegmatite of Perus, northwestern part of the city of São Paulo, southeastern Brazil
Giersdorf_00000848Secondary uranium phosphates and silicates occur as placoid crystals and crusts, colored green to yellow, filling fractures in the tourmaline-bearing granitic pegmatite of Perus, northwestern part of the city of São Paulo, southeastern Brazil


3 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
Giersdorf_00000846640640640K-Ar lepidolite   Autunite, Bassetite, Chernikovite, Haiweeite, Meta-autunite, Opal, Phurcalite, Quartz, Rhodochrosite, Saponite, Torbernite, Uranophane, Parauranophane, Weeksite 253267Pegmatite Quarries, Perus, São Paulo, São Paulo, BrazilPerusAtencio & Hypolito (2017)10.25249/0375-7536.19944351RBG24_43Age is attributed to the pegmatite found in the Perus quarry, São Paulo, Brazil
Giersdorf_00000847670630650±20K-Ar lepidolite   Autunite, Bassetite, Chernikovite, Haiweeite, Meta-autunite, Opal, Phurcalite, Quartz, Rhodochrosite, Saponite, Torbernite, Uranophane, Parauranophane, Weeksite 253267Pegmatite Quarries, Perus, São Paulo, São Paulo, BrazilPerusAtencio & Hypolito (2017)10.25249/0375-7536.19944351RBG24_43Age is attributed to the pegmatite found in the Perus quarry, São Paulo, Brazil
Giersdorf_00000848585545565±20Rb-Sr     Autunite, Bassetite, Chernikovite, Haiweeite, Meta-autunite, Opal, Phurcalite, Quartz, Rhodochrosite, Saponite, Torbernite, Uranophane, Parauranophane, Weeksite 253267Pegmatite Quarries, Perus, São Paulo, São Paulo, BrazilPerusAtencio & Hypolito (1994)10.25249/0375-7536.19944351RBG24_43Age is attributed to the pegmatite found in the Perus quarry, São Paulo, Brazil

SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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