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:
Seafoam District, Custer Co., Idaho, USA


mindat Locality ID: 39488
mindat URL: http://www.mindat.org/loc-39488.html

Tectonic Settings:

Total number of sublocalities beneath "Seafoam District, Custer Co., Idaho, USA": 68
Total number of bottom-level sublocalities: 67

Number of Child Localities: 67
Child Localities:
Bell Creek Placers
Betty Ruth Claim (Baby Ruth)
Blackjack Mine
Bonanza No. 1 Claim
Brown Bear Prospect
Canary Yellow Mine
Capitol State Claim
Chuck Creek Occurrence
Clark Colleen Group (Perky Claim; Collister Property Claim; Summit Claim; Lost Trail Group)
Clark Colleen No. 5 Prospect (Enterprise Mine)
Colleen No. 10 Prospect
Collister Property Claims
Dowling Quartz Prospect
Float Creek Claims (Josephus Lake)
General Grant Claim (Greyhound Mine - 0160370223)
Gold Occurrence (MRDS - 10119750)
Gold Occurrence (MRDS - 10290079)
Hardscrabble Mine (Hard Scrabble; Hardscrabble And Brown Bear)
Hi-Moon Claims
Idaho Prospect
Lakeview Prospect
Last Dollar Claim
Long Shot No. 1 Claim (Mia Nos. 19; 24; 25; Longshot)
Long Shot No. 3 Claim
Lovenest Prospect
Mia No. 22 Prospect
Mia No. 30 Claim
Mill Creek Project
Moonshine Prospect
Mountain Dew Prospect
Muskeg Creek
Mystery Prospect
Nessie No. 12 Prospect
Old Soldier No. 1 Prospect
Old Soldier No. 2 Prospect
Opal Creek Placer
Phonta-Williamson Mine (Phonta Williamson Group)
Pinyon Silver Nos. 1-3 Claims
Post's Property Mine (Lost Claim Group)
Ramshorn Mine
Rasche Property Claims (Lost Claim Acebo)
Republican Group Mine (Ivanhoe; Greyhound Prospect; Buck Horn Claim; Idaho Claim; Republican Claim; Bull Dog Claim)
River Of No Return Wilderness
Seafoam Mine (Montana Mine)
Seafoam Placer
Seagraves Mine (Lone Star Mine; Silver King Prospect; Star Mine; Grey Eagle Mine)
Silver Bell Extension Prospect (Silverbell Extension; Burns Property; Lakeview Group)
Silver Bell Group (Burns Group; Lucky Boy; Day No. 1)
Sixteen To One Group (16-To-1 Prospect)
Stella Claim (Iron Blossom)
Surprise No. 1 Claim
Trade Dollar Prospect
Unnamed Gold Prospect (MRDS - 10119802)
Unnamed Gold Prospect (MRDS - 10192528)
Unnamed Gold Prospect (MRDS - 10241385)
Unnamed Silver Prospect (MRDS - 10119550)
Unnamed Silver Prospect (MRDS - 10143958)
Unnamed Silver Prospect (MRDS - 10144013)
Unnamed Silver Prospect (MRDS - 10167981)
Unnamed Silver Prospect (MRDS - 10192733)
Unnamed Silver Prospect (MRDS - 10216609)
Unnamed Silver Prospect (MRDS - 10265886)
Unnamed Zinc - Gold - Lead - Silver Prospect (MRDS - 10216904)
West Side Claim
Wild Buck Claim (Mia No. 6; Wildbuck; Wild Dog)
Wildgoat No. 1 Prospect
Wildgoat No. 3 Prospect (Silver Prospect)

Latitude: 44°32'48"N
Longitude: 115°5'31"W
Decimal Degree (lat, lon): 44.546666666667,-115.09194444444
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 Fe H O Pb S Sb Si Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
CalciteChalcopyriteClinozoisiteEpidoteNickelineNoneNot in a structural groupPyriteQuartzRocksalt
SphaleriteSpinelTetrahedrite

12 IMA Minerals at location:
Azurite  (*)Bornite  (*)Calcite  (*)Chalcopyrite  (*)Epidote  (*)
Galena  (*)Magnetite  (*)Pyrite  (*)Pyrrhotite  (*)Quartz  (*)
Sphalerite  (*)Tetrahedrite-(Zn)  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)212073015509
Bornite  (*)NoneCu5FeS412072945516
Calcite  (*)CalciteCa(CO3)120725527770
Chalcopyrite  (*)ChalcopyriteCuFeS26207265,207270,207292,207294,207297,20730227198
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)12072938173
Galena  (*)RocksaltPbS10207255,207270,207281,207284,207293,207294,207297,207301,207302,20730524243
Magnetite  (*)SpinelFe2+Fe3+2O4120729414899
Pyrite  (*)PyriteFeS26207265,207292,207294,207297,207301,20730239462
Pyrrhotite  (*)NickelineFe7S83207284,207293,2072949056
Quartz  (*)QuartzSiO29207255,207265,207270,207281,207284,207292,207293,207294,20729761156
Sphalerite  (*)SphaleriteZnS3207270,207294,20729721482
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S1312073015317


No ages have been assigned to this locality yet.
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