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:
Muggins Mountains Uranium Prospects, Muggins District, Muggins Mts, Yuma Co., Arizona, USA

Oldest recorded age at locality: 23.2
Youngest recorded age at locality: 21.8

mindat Locality ID: 33625
mindat URL: http://www.mindat.org/loc-33625.html

Tectonic Settings:

Total number of sublocalities beneath "Muggins Mountains Uranium Prospects, Muggins District, Muggins Mts, Yuma Co., Arizona, USA": 6
Total number of bottom-level sublocalities: 6

Number of Child Localities: 6
Child Localities:
Dizzy Lizzie Prospect (Dizzly Lizy Prospect)
Isley Dillard Group (Isley-Lillard Prospect)
Lake Bed Prospect
Red Knob Mine (Red Knob Prospect; Red Knob Claims)
St. Louis Group
Wooley Group

Latitude: 32°45'0"N
Longitude: 114°9'38"W
Decimal Degree (lat, lon): 32.75,-114.16055555556
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: C Ca Cl Cu H K Mo O P Pb S Si U V 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AmorphousApatiteAutuniteCalciteGypsumNoneNot in a structural groupQuartzScheelite

13 IMA Minerals at location:
Autunite  (*)Azurite  (*)Calcite  (*)Carnotite  (*)Cuprite  (*)
Gypsum  (*)Opal  (*)Pyromorphite  (*)Quartz  (*)Uranophane-α  (*)
Vanadinite  (*)Weeksite  (*)Wulfenite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O23.221.811494801272
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)223.221.811494805509
Calcite  (*)CalciteCa(CO3)23.221.8114948027770
Carnotite  (*)NoneK2(UO2)2(VO4)2·3H2O23.221.811494801184
Cuprite  (*)Not in a structural groupCu2O23.221.811494802970
Gypsum  (*)GypsumCa(SO4)·2H2O23.221.811494806890
Opal  (*)AmorphousSiO2·nH2O23.221.811494802994
Pyromorphite  (*)ApatitePb5(PO4)3Cl23.221.811494801725
Quartz  (*)QuartzSiO223.221.8114948061156
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O23.221.81149480890
Vanadinite  (*)ApatitePb5(VO4)3Cl23.221.81149480605
Weeksite  (*)None(K)2(UO2)2(Si5O13)·4H2O23.221.8114948042
Wulfenite  (*)ScheelitePbMoO423.221.811494801655


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
Giersdorf_0000040223.221.822.5±0.7K-Ar  UAKA-67-23 Yes  33582Muggins District, Muggins Mts, Yuma Co., Arizona, USAMuggins MountainsShafiqullah et al. (1980) AGSD12_201 

SampleSource LocalityReference URL

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