Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Nugget Group, Jamestown Mining District, Boulder County, Colorado, USAi
Regional Level Types
Nugget GroupGroup of Mines
Jamestown Mining DistrictMining District
Boulder CountyCounty
ColoradoState
USACountry

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Latitude & Longitude (WGS84):
40° 5' 43'' North , 105° 23' 11'' West
Latitude & Longitude (decimal):
40.09555,-105.38667
GeoHash:
G#: 9xjh1g5v8
GRN:
N27W59
Type:
Group of Mines
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Jamestown264 (2017)2.2km
Sunshine230 (2011)3.7km
Gold Hill230 (2011)4.1km
Lazy Acres920 (2011)4.6km
Bark Ranch213 (2011)5.1km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Flatirons Mineral ClubBoulder, Colorado13km
Mile High Rock and Mineral SocietyArvada, Colorado41km
Mindat Locality ID:
110333
Long-form identifier:
mindat:1:2:110333:8
GUID (UUID V4):
0


REF:Deposit:: LOVERING AND GODDARD, 1950, USGS PP 223, PLATE 3
Deposit:: BLM COLO. CONNECTING SHEETS
Deposit:: USGS TOPO MAP, JAMESTOWN & VICINITY, 1:24000, ADVANCE SHEET
Deposit:: CONSV. DIV. COMP. DATE, 10,62
Commodities (Major) - Gold, Lead, Silver
Deposit Type: Vein
Development Status: Producer
Host Rock: Schist

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


9 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

✪ Ferberite
Formula: FeWO4
ⓘ Fluorite
Formula: CaF2
ⓘ Galena
Formula: PbS
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Native Gold
Formula: Au
ⓘ Native Silver
Formula: Ag
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Roscoelite
Formula: KV3+2(AlSi3O10)(OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
ⓘNative Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘFerberite4.DB.30FeWO4
Group 9 - Silicates
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘRoscoelite9.EC.15KV3+2(AlSi3O10)(OH)2
ⓘMuscovite
var. Sericite		9.EC.15KAl2(AlSi3O10)(OH)2

List of minerals for each chemical element

HHydrogen
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ RoscoeliteKV23+(AlSi3O10)(OH)2
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
OOxygen
Oⓘ FerberiteFeWO4
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ RoscoeliteKV23+(AlSi3O10)(OH)2
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
FFluorine
Fⓘ FluoriteCaF2
AlAluminium
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ RoscoeliteKV23+(AlSi3O10)(OH)2
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ RoscoeliteKV23+(AlSi3O10)(OH)2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SSulfur
Sⓘ GalenaPbS
Sⓘ PyriteFeS2
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ RoscoeliteKV23+(AlSi3O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ FluoriteCaF2
VVanadium
Vⓘ RoscoeliteKV23+(AlSi3O10)(OH)2
FeIron
Feⓘ FerberiteFeWO4
Feⓘ PyriteFeS2
AgSilver
Agⓘ Native SilverAg
WTungsten
Wⓘ FerberiteFeWO4
AuGold
Auⓘ Native GoldAu
PbLead
Pbⓘ GalenaPbS

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
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