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Grand Republic Occurrence, Gold Hill Mining District, Boulder County, Colorado, USAi
Regional Level Types
Grand Republic OccurrenceOccurrence
Gold Hill Mining DistrictMining District
Boulder CountyCounty
ColoradoState
USACountry

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Latitude & Longitude (WGS84):
40° 2' 15'' North , 105° 23' 12'' West
Latitude & Longitude (decimal):
40.03750,-105.38667
GeoHash:
G#: 9xj5cbeg2
GRN:
N27W59
Type:
Occurrence
KΓΆppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Mountain Meadows274 (2011)1.6km
Crisman186 (2011)2.2km
Sugarloaf261 (2011)2.9km
Gold Hill230 (2011)3.5km
Sunshine230 (2011)3.6km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Flatirons Mineral ClubBoulder, Colorado10km
Mile High Rock and Mineral SocietyArvada, Colorado36km
Colorado Mineral SocietyLakewood, Colorado45km
Denver Gem and Mineral GuildDenver, Colorado48km
Friends of Mineralogy - Colorado Chapter Denver, Colorado48km
Mindat Locality ID:
110096
Long-form identifier:
mindat:1:2:110096:2
GUID (UUID V4):
bccaaf56-46e6-4f0a-b41c-824a78637585


REF:Deposit:: LOVERING & GODDARD, 1950, USGS P.P. 223, PG. 251-253
Deposit:: USGS GOLD HILL TOPO QUAD, 1957, 7 1/2 MIN
Deposit:: CONSV. DIV. COMP. DATE, 1,62
Deposit:: REF. VANDERWILT MINERAL RESOURCES OF COLO P 320
Deposit:: REF USGS PROF PAPER 223 PLATE 3
Commodities (Major) - Gold
Deposit Type: Vein
Development Status: Occurrence
Host Rock: Granite

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


8 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:

β“˜ Arsenopyrite
Formula: FeAsS
β“˜ 'Chlorite Group'
β“˜ Ferberite
Formula: FeWO4
β“˜ Gold
Formula: Au
β“˜ Marcasite
Formula: FeS2
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Pyrite
Formula: FeS2
β“˜ Quartz
Formula: SiO2
β“˜ Sylvanite
Formula: AgAuTe4

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
β“˜Sylvanite2.EA.05AgAuTe4
β“˜Pyrite2.EB.05aFeS2
β“˜Marcasite2.EB.10aFeS2
β“˜Arsenopyrite2.EB.20FeAsS
Group 4 - Oxides and Hydroxides
β“˜Quartz4.DA.05SiO2
β“˜Ferberite4.DB.30FeWO4
Group 9 - Silicates
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
β“˜'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
OOxygen
Oβ“˜ FerberiteFeWO4
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ QuartzSiO2
Oβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
AlAluminium
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SSulfur
Sβ“˜ ArsenopyriteFeAsS
Sβ“˜ MarcasiteFeS2
Sβ“˜ PyriteFeS2
KPotassium
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
FeIron
Feβ“˜ ArsenopyriteFeAsS
Feβ“˜ FerberiteFeWO4
Feβ“˜ MarcasiteFeS2
Feβ“˜ PyriteFeS2
AsArsenic
Asβ“˜ ArsenopyriteFeAsS
AgSilver
Agβ“˜ SylvaniteAgAuTe4
TeTellurium
Teβ“˜ SylvaniteAgAuTe4
WTungsten
Wβ“˜ FerberiteFeWO4
AuGold
Auβ“˜ GoldAu
Auβ“˜ SylvaniteAgAuTe4

Other Regions, Features and Areas containing this locality

North America
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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