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:
Sun; Picnic Creek; Hot Prospects, Shungnak District, Northwest Arctic Borough, Alaska, USA

Oldest recorded age at locality: 419
Youngest recorded age at locality: 323

mindat Locality ID: 200220
mindat URL: http://www.mindat.org/loc-200220.html

Tectonic Settings:

Total number of sublocalities beneath "Sun; Picnic Creek; Hot Prospects, Shungnak District, Northwest Arctic Borough, Alaska, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 67°4'13"N
Longitude: 155°2'34"W
Decimal Degree (lat, lon): 67.070277777778,-155.04277777778

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 As Ba C Ca Cu Fe H K Mg Na O Pb S Si Zn 

Elements from minerals reported directly at this locality: Al As Ba C Ca Cu Fe H K Mg Na O Pb S Si Zn 

Structural Groups for minerals in this locality: 
AmphiboleArsenopyriteBaryteCalciteChalcopyriteClayEnargiteMicaNoneQuartz
RocksaltSphaleriteStilpnomelaneWurtzite

15 IMA Minerals at location:
Actinolite  (*)Arsenopyrite  (*)Baryte  (*)Bornite  (*)Calcite  (*)
Chalcopyrite  (*)Cymrite  (*)Dolomite  (*)Enargite  (*)Galena  (*)
Muscovite  (*)Quartz  (*)Sphalerite  (*)Stilpnomelane  (*)Tremolite  (*)
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)241932303419
Arsenopyrite  (*)ArsenopyriteFeAsS41932309052
Baryte  (*)BaryteBa(SO4)419323011547
Bornite  (*)NoneCu5FeS441932305516
Calcite  (*)CalciteCa(CO3)419323027770
Chalcopyrite  (*)ChalcopyriteCuFeS2419323027198
Cymrite  (*)NoneBa(Si,Al)4(O,OH)8·H2O419323046
Dolomite  (*)NoneCaMg(CO3)241932309895
Enargite  (*)Enargite WurtziteCu3AsS44193230910
Galena  (*)RocksaltPbS419323024243
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2419323017380
Quartz  (*)QuartzSiO2419323061156
Sphalerite  (*)SphaleriteZnS419323021482
Stilpnomelane  (*)Stilpnomelane Clay(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36·nH2O4193230456
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)241932302562



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
vms-01003419323Devonian-Mississippian        200220Sun; Picnic Creek; Hot Prospects, Shungnak District, Northwest Arctic Borough, Alaska, USASun-Picnic CreekMoiser et al. (2009) USGSOFR2009-1034 


SampleSource LocalityReference URL


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