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:
State Of Maine Mine (Sierra Minerals Management Property), Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA

Oldest recorded age at locality: 145
Youngest recorded age at locality: 0

mindat Locality ID: 8093
mindat URL: http://www.mindat.org/loc-8093.html

Tectonic Settings:

Total number of sublocalities beneath "State Of Maine Mine (Sierra Minerals Management Property), Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 31°41'57"N
Longitude: 110°6'54"W
Decimal Degree (lat, lon): 31.699166666667,-110.115
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: Ag Al Ba C Ca Cl Cu Fe H Mo O Pb S Si V 

Elements from minerals reported directly at this locality: Ag Al Ba C Ca Cl Cu Fe H Mo O Pb S Si V 

Structural Groups for minerals in this locality: 
AllophaneApatiteAragoniteBaryteCalciteCopperCorundumMalachiteNoneNot in a structural group
PyriteQuartzRocksaltScheelite

15 IMA Minerals at location:
Anglesite  (*)Azurite  (*)Baryte  (*)Calcite  (*)Cerussite  (*)
Chlorargyrite  (*)Chrysocolla  (*)Galena  (*)Hematite  (*)Malachite  (*)
Pyrite  (*)Quartz  (*)Silver  (*)Vanadinite  (*)Wulfenite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Anglesite  (*)BarytePb(SO4)145002734
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)2145005509
Baryte  (*)BaryteBa(SO4)1450011547
Calcite  (*)CalciteCa(CO3)1450027770
Cerussite  (*)AragonitePb(CO3)145004979
Chlorargyrite  (*)RocksaltAgCl145001382
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O145003531
Galena  (*)RocksaltPbS1450024243
Hematite  (*)CorundumFe2O31450014640
Malachite  (*)MalachiteCu2(CO3)(OH)21450012537
Pyrite  (*)PyriteFeS21450039462
Quartz  (*)QuartzSiO21450061156
Silver  (*)CopperAg145005186
Vanadinite  (*)ApatitePb5(VO4)3Cl14500605
Wulfenite  (*)ScheelitePbMoO4766601655


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Michelle_554Near-surface occurrence. Recently forming oxalate associated with cave deposits, in Cochise County, Arizona.


7 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
Michelle_55400Recent Age of whewellite mineralizationhigh   YesWhewellite 15570Cochise Co., Arizona, USACochise CountyHofmann and Bernasconi (1998)10.1016/S0009-2541(98)00043-6CG149_127Described as "recent cave deposits."
EG94_211-000557676 Pb-Pb whole rock?T11 Yes  19445Tombstone District, Tombstone Hills, Cochise Co., Arizona, USATombstoneBouse et al. (1999)10.2113/gsecongeo.94.2.211EG94_211 
EG94_211-000567676 Pb-Pb whole rock?T21 Yes  19445Tombstone District, Tombstone Hills, Cochise Co., Arizona, USATombstoneBouse et al. (1999)10.2113/gsecongeo.94.2.211EG94_211 
EG94_211-000577272 Pb-Pb whole rock?T32 Yes  19445Tombstone District, Tombstone Hills, Cochise Co., Arizona, USATombstoneBouse et al. (1999)10.2113/gsecongeo.94.2.211EG94_211 
EG94_211-00058666666Pb-Pb whole rock?T44 Yes  19445Tombstone District, Tombstone Hills, Cochise Co., Arizona, USATombstoneBouse et al. (1999)10.2113/gsecongeo.94.2.211EG94_211 
Mo-001807666 U-Th-Pb?, Pb-Pb?    YesMolybdofornacite, WulfeniteMo19445Tombstone District, Tombstone Hills, Cochise Co., Arizona, USATombstone VolcanicsBouse et al. (1999)10.2113/gsecongeo.94.2.211EG94_21176-66 Ma is the age range of volcanics at Tombstone including Bronco Volcanics (76 Ma), Schieffelin Granodiorite (76 Ma), Rhyodacite stock (72 Ma), and Tombstone Rhyolite (66 Ma).
sedznpb-004971452.6Cretaceous–Tertiary     Yes  19445Tombstone District, Tombstone Hills, Cochise Co., Arizona, USATombstoneSinger et al. (2009) USGSOFR2009-1252 

SampleSource LocalityReference URL

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