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:
McCoy Spring, Arlington District (Ironwood District), McCoy Mts (Ironwood Mts), Riverside Co., California, USA


mindat Locality ID: 217379
mindat URL: http://www.mindat.org/loc-217379.html

Tectonic Settings:

Total number of sublocalities beneath "McCoy Spring, Arlington District (Ironwood District), McCoy Mts (Ironwood Mts), Riverside Co., California, USA": 23
Total number of bottom-level sublocalities: 22

Number of Child Localities: 19
Child Localities:
Arlington Black Jack Deposit (Arlington-Blackjack Mine; Blackjack Mine; Arlington Group Mines)
Aztec Mine
Black Horse Group
Bray Mine
Copper Queen Mine
Crescent Copper Group [1] (Crescent Group; Badger State Group; Eagle Nest Mine; Eagle Nest No. 7 Claim)
George Claims (Red Rock Claims)
Ironwood Mine
Jim Claims
La Perida No. 1 Mine (La Perida #1)
Lucky Jim Claim
MacLeish Claim (McLeish Claim)
McCoy Mountain Placer
Palisade Mine
Scott Lode No. 1 Mine
St. John Mine
Unnamed Cu-Ag Occurrence [2]
Unnamed Uranium Ore Claims [2]
Yellow Stone Claim (Manganese Extension; Giant Chief Claim)

Latitude: 33°45'57"N
Longitude: 114°54'2"W
Decimal Degree (lat, lon): 33.765833333333,-114.90055555556
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 Au Ba C Ca Cu Fe H K Li Mg Mn O Pb S Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AcanthiteAllophaneAluniteAmphiboleAragoniteBaryteCalciteChalcopyriteClayClinozoisite
CopperCorundumEpidoteMalachiteMicaNoneNot in a structural groupPyriteQuartzRocksalt
RutileSphalerite

25 IMA Minerals at location:
Acanthite  (*)Actinolite  (*)Annite  (*)Azurite  (*)Baryte  (*)
Calcite  (*)Cerussite  (*)Chalcocite  (*)Chalcopyrite  (*)Chrysocolla  (*)
Cuprite  (*)Epidote  (*)Galena  (*)Gold  (*)Hematite  (*)
Jarosite  (*)Lithiophorite  (*)Malachite  (*)Manganite  (*)Plumbojarosite  (*)
Pyrite  (*)Pyrolusite  (*)Quartz  (*)Sphalerite  (*)Tenorite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S11693212793
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)211693103419
Annite  (*)Mica ClayKFe2+3(AlSi3O10)(OH)21169310356
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)211693215509
Baryte  (*)BaryteBa(SO4)116931111547
Calcite  (*)CalciteCa(CO3)116931027770
Cerussite  (*)AragonitePb(CO3)11693104979
Chalcocite  (*)NoneCu2S2169310,1693215707
Chalcopyrite  (*)ChalcopyriteCuFeS2116931027198
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O11693103531
Cuprite  (*)Not in a structural groupCu2O2169310,1693212970
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)11693108173
Galena  (*)RocksaltPbS116931024243
Gold  (*)CopperAu116931930554
Hematite  (*)CorundumFe2O3116931014640
Jarosite  (*)AluniteKFe3+3(SO4)2(OH)611693102228
Lithiophorite  (*)None(Al,Li)(Mn4+,Mn3+)O2(OH)21169301210
Malachite  (*)MalachiteCu2(CO3)(OH)2116931012537
Manganite  (*)RutileMn3+O(OH)4169302,169304,169305,169311770
Plumbojarosite  (*)AlunitePb0.5Fe3+3(SO4)2(OH)61169310477
Pyrite  (*)PyriteFeS2116931039462
Pyrolusite  (*)RutileMnO25169302,169303,169304,169305,1693113106
Quartz  (*)QuartzSiO2116931061156
Sphalerite  (*)SphaleriteZnS116931021482
Tenorite  (*)NoneCuO11693201101


No ages have been assigned to this locality yet.
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