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:
Monument Mountain, Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA

Oldest recorded age at locality: 62
Youngest recorded age at locality: 56

mindat Locality ID: 58544
mindat URL: http://www.mindat.org/loc-58544.html

Tectonic Settings:

Total number of sublocalities beneath "Monument Mountain, Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Omega Extension Mine
Omega Mine (Omega Tunnel; Omega Extension Mine)

Latitude: 31°51'22"N
Longitude: 110°46'8"W
Decimal Degree (lat, lon): 31.856111111111,-110.76888888889

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 C Ca Cu F Fe H K Mg Mo O Pb S Si W Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AllophaneAluniteAmorphousAmphiboleBrochantiteCalciteChalcanthiteChalcopyriteClayClinozoisite
CopperCorundumDiasporeEpidoteFluoriteGypsumLepidocrociteMalachiteMicaNone
Not in a structural groupPlancheitePyriteQuartzRocksaltScheeliteSphaleriteSpinel

34 IMA Minerals at location:
Actinolite  (*)Aurichalcite  (*)Azurite  (*)Brochantite  (*)Calcite  (*)
Chalcanthite  (*)Chalcopyrite  (*)Chrysocolla  (*)Copper  (*)Cuprite  (*)
Cuprotungstite  (*)Epidote  (*)Fluorite  (*)Galena  (*)Goethite  (*)
Gypsum  (*)Hematite  (*)Hemimorphite  (*)Lepidocrocite  (*)Magnetite  (*)
Malachite  (*)Muscovite  (*)Opal  (*)Osarizawaite  (*)Plancheite  (*)
Powellite  (*)Pyrite  (*)Quartz  (*)Rosasite  (*)Scheelite  (*)
Smithsonite  (*)Sphalerite  (*)Tremolite  (*)Wulfenite  (*)
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)2625611443523419
Aurichalcite  (*)None(Zn,Cu)5(CO3)2(OH)662561144352919
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)2625611443525509
Brochantite  (*)BrochantiteCu4(SO4)(OH)6625611443521633
Calcite  (*)CalciteCa(CO3)6256114435227770
Chalcanthite  (*)ChalcanthiteCu(SO4)·5H2O62561144352925
Chalcopyrite  (*)ChalcopyriteCuFeS262562144351,14435227198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O625611443523531
Copper  (*)CopperCu625611443523846
Cuprite  (*)Not in a structural groupCu2O625611443522970
Cuprotungstite  (*)NoneCu2+3(WO4)2(OH)26256114435267
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)625611443528173
Fluorite  (*)FluoriteCaF2625611443529617
Galena  (*)RocksaltPbS6256114435224243
Goethite  (*)DiasporeFeO(OH)625611443527437
Gypsum  (*)GypsumCa(SO4)·2H2O625611443526890
Hematite  (*)CorundumFe2O36256114435214640
Hemimorphite  (*)Not in a structural groupZn4(Si2O7)(OH)2·H2O625611443521689
Lepidocrocite  (*)LepidocrociteFe3+O(OH)62561144352581
Magnetite  (*)SpinelFe2+Fe3+2O46256114435214899
Malachite  (*)MalachiteCu2(CO3)(OH)26256114435212537
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)26256114435217380
Opal  (*)AmorphousSiO2·nH2O625611443522994
Osarizawaite  (*)AlunitePb(Al2Cu2+)(SO4)2(OH)66256114435264
Plancheite  (*)PlancheiteCu8(Si4O11)2(OH)4·H2O6256114435274
Powellite  (*)ScheeliteCa(MoO4)62561144352494
Pyrite  (*)PyriteFeS262562144351,14435239462
Quartz  (*)QuartzSiO26256114435261156
Rosasite  (*)MalachiteCuZn(CO3)(OH)262561144352454
Scheelite  (*)ScheeliteCa(WO4)625611443524894
Smithsonite  (*)CalciteZn(CO3)625611443522473
Sphalerite  (*)SphaleriteZnS6256114435221482
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2625611443522562
Wulfenite  (*)ScheelitePbMoO4625611443521655



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
PorphCu-00109625656-62     YesBornite, Chalcopyrite, Chrysocolla, Diopside, Epidote, Galena, Gold, Magnetite, Molybdenite, Pyrite, Scheelite, Sphalerite, WollastoniteCu49290Helvetia, Helvetia-Rosemont District, Santa Rita Mts, Pima Co., Arizona, USAHelvetiaSinger et al. (2008) USGSOFR2008_1155 


SampleSource LocalityReference URL


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