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:
Grayback District (Russell District), Costilla Co., Colorado, USA


mindat Locality ID: 49881
mindat URL: http://www.mindat.org/loc-49881.html

Tectonic Settings:

Total number of sublocalities beneath "Grayback District (Russell District), Costilla Co., Colorado, USA": 35
Total number of bottom-level sublocalities: 35

Number of Child Localities: 35
Child Localities:
Badger State Placers 1-5
Climax 1 And 2 Claims
Copper King Claim
Copper Queen Mine (Russell No. 1)
Denver Placers 6-8
Excelsior Tunnel Occurrence
Giant Gulch Placer
Hidden Treasure Claim
Homestake Tunnel Occurrence
Hub Hall Claim
John Moore And Lucky Claims
Last Chance Mine
Last Chance Placer (Last Chance No. 3)
Lizzie G. Group (Claims: Lizzie G.; Lizzie G. No. 1; Lizzie G. No. 2)
Lone Star Of The West Mine
Lower Star Of The West Mine (Stoddard Mine)
Magnolia Group
Mamarth Claim
Merrimac Claim
Midnight Group (Pride; Red Bird)
Millie G. Claim
Mineral Ridge
Monte Christo Mine (Snow Flake)
Mountain View Tunnel
Otero Placers 1 And 2
Paul H. And Daisy Claims
Placer (MRDS - 10142028)
Rico Claims (Rico And Rico No. 1)
Rock And Rye Claim
Silver Tip Mine
Spanish Basin Placer Company Claims (Claims: Alpha No. 1; Beta No. 2; Beta No. 1; Omega No. 1; Omega No. 2; Alpha No. 2)
Star Of The West Mine (Ainsworth; Upper Star Of The West Mine)
Sunnyside Tunnel
Willow Gulch Placer
XTC Claim (Rico; Blue Jay; Blue Bird Mine)

Latitude: 37°36'12"N
Longitude: 105°16'42"W
Decimal Degree (lat, lon): 37.603333333333,-105.27833333333
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 C Ca Cu Fe H Mg O Pb S Si Te 

Elements from minerals reported directly at this locality: C Ca Cu Fe H Mg O Si 

Structural Groups for minerals in this locality: 
AmphiboleCalciteChalcopyriteClinozoisiteCopperCorundumEpidoteGarnetMalachiteMelonite
NonePyriteQuartzRocksaltSpinel

15 IMA Minerals at location:
Andradite  (*)Anthophyllite  (*)Calaverite  (*)Calcite  (*)Chalcocite  (*)
Chalcopyrite  (*)Epidote  (*)Galena  (*)Gold  (*)Hematite  (*)
Magnetite  (*)Malachite  (*)Pyrite  (*)Quartz  (*)Silver  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Andradite  (*)GarnetCa3Fe3+2(SiO4)301534
Anthophyllite  (*)Amphibole   Mg2Mg5Si8O22(OH)20718
Calaverite  (*)MeloniteAuTe23187077,187083,187104361
Calcite  (*)CalciteCa(CO3)2187086,18710227770
Chalcocite  (*)NoneCu2S5187074,187085,187098,187100,1871055707
Chalcopyrite  (*)ChalcopyriteCuFeS25187074,187085,187098,187100,18710527198
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)2187086,1871028173
Galena  (*)RocksaltPbS118710324243
Gold  (*)CopperAu8187071,187072,187075,187077,187083,187095,187101,18710430554
Hematite  (*)CorundumFe2O34187081,187082,187086,18710214640
Magnetite  (*)SpinelFe2+Fe3+2O42187086,18710214899
Malachite  (*)MalachiteCu2(CO3)(OH)2012537
Pyrite  (*)PyriteFeS23187078,187102,18710439462
Quartz  (*)QuartzSiO2061156
Silver  (*)CopperAg11870725186


No ages have been assigned to this locality yet.
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