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Poorman group, Gold Hill Mining District, Boulder Co., Colorado, USAi
Regional Level Types
Poorman group- not defined -
Gold Hill Mining DistrictMining District
Boulder Co.County
ColoradoState
USACountry

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Key
Latitude & Longitude (WGS84):
40° 2' 15'' North , 105° 20' 56'' West
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Crisman186 (2011)1.1km
Seven Hills121 (2011)1.3km
Tall Timber208 (2011)2.6km
Mountain Meadows274 (2011)3.1km
Pine Brook Hill983 (2011)3.2km


Commodities (Major) - Gold
Deposit Type: Vein
Development Status: Occurrence
Host Rock Unit: Browns Park Formation
Host Rock: Quartz Monzonite

Regions containing this locality

North America PlateTectonic Plate
Rocky Mountains, North AmericaMountain Range

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

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


Mineral List


12 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and 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:

Altaite
Formula: PbTe
Reference: U.S. Geological Survey Professional Paper 223
Gold
Formula: Au
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; U.S. Geological Survey Professional Paper 223
Hematite
Formula: Fe2O3
Reference: U.S. Geological Survey Professional Paper 223
Jamesonite
Formula: Pb4FeSb6S14
Reference: Minerals of Colorado (1997) Eckel, E. B.
Mercury
Formula: Hg
Reference: U.S. Geological Survey Professional Paper 223
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: U.S. Geological Survey Professional Paper 223
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: U.S. Geological Survey Professional Paper 223
Petzite
Formula: Ag3AuTe2
Reference: U.S. Geological Survey Professional Paper 223
Pyrite
Formula: FeS2
Reference: U.S. Geological Survey Professional Paper 223
Quartz
Formula: SiO2
Reference: U.S. Geological Survey Professional Paper 223
Sphalerite
Formula: ZnS
Reference: Minerals of Colorado (1997) Eckel, E. B.
Sylvanite
Formula: (Au,Ag)2Te4
Reference: U.S. Geological Survey Professional Paper 223
Tetrahedrite
Formula: Cu6Cu4(Fe2+,Zn)2Sb4S12S
Reference: Minerals of Colorado (1997) Eckel, E. B.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Mercury1.AD.05Hg
Group 2 - Sulphides and Sulfosalts
Altaite2.CD.10PbTe
Jamesonite2.HB.15Pb4FeSb6S14
Petzite2.BA.75Ag3AuTe2
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Sylvanite2.EA.05(Au,Ag)2Te4
Tetrahedrite2.GB.05Cu6Cu4(Fe2+,Zn)2Sb4S12S
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Group 9 - Silicates
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Mercury1.1.7.1Hg
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Petzite2.4.3.3Ag3AuTe2
AmXp, with m:p = 1:1
Altaite2.8.1.3PbTe
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Sylvanite2.12.13.3(Au,Ag)2Te4
Group 3 - SULFOSALTS
3 <ø < 4
Tetrahedrite3.3.6.1Cu6Cu4(Fe2+,Zn)2Sb4S12S
2 < ø < 2.49
Jamesonite3.6.7.1Pb4FeSb6S14
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2

List of minerals for each chemical element

HHydrogen
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
OOxygen
O HematiteFe2O3
O QuartzSiO2
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
AlAluminium
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si QuartzSiO2
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
S JamesonitePb4FeSb6S14
S TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
S SphaleriteZnS
S PyriteFeS2
KPotassium
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
FeIron
Fe JamesonitePb4FeSb6S14
Fe TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
Fe HematiteFe2O3
Fe PyriteFeS2
CuCopper
Cu TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
ZnZinc
Zn TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
Zn SphaleriteZnS
AgSilver
Ag Sylvanite(Au,Ag)2Te4
Ag PetziteAg3AuTe2
SbAntimony
Sb JamesonitePb4FeSb6S14
Sb TetrahedriteCu6Cu4(Fe2+,Zn)2Sb4S12S
TeTellurium
Te Sylvanite(Au,Ag)2Te4
Te AltaitePbTe
Te PetziteAg3AuTe2
AuGold
Au GoldAu
Au Sylvanite(Au,Ag)2Te4
Au PetziteAg3AuTe2
HgMercury
Hg MercuryHg
PbLead
Pb JamesonitePb4FeSb6S14
Pb AltaitePbTe

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
LOVERING AND GODDARD, 1950, USGS PP 223, PG. 224-226 PLATE 22.
HUMPHREY, 1955, C U MS THESIS.
CONSV. DIV. COMP. DATE, 1,62.


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