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Sylvanite Mine, Beartown Mining District (Bear Creek Mining District), San Juan Co., Colorado, USAi
Regional Level Types
Sylvanite MineMine
Beartown Mining District (Bear Creek Mining District)Mining District
San Juan Co.County
ColoradoState
USACountry

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Key
Latitude & Longitude (WGS84):
37° 42' 41'' North , 107° 30' 51'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Silverton637 (2011)17.3km
Ophir169 (2017)32.3km
Telluride2,399 (2018)36.3km
Ouray1,008 (2017)37.3km
Mountain Village1,395 (2017)38.7km


REF:Deposit:: STEVEN, T.A., AND OTHERS, 1969, MINERAL RESOURCES OF THE SAN JUAN PRIMITIVE AREA, COLORADO: USGS BULL. 1261-F, P. 67-71, 89-90.
Deposit:: STEVEN, T.A., AND OTHERS, 1974, GEOLOGIC MAP OF THE DURANGO QUADRANGLE, SOUTHWESTERN COLORADO: USGS MAP I
Commodities (Major) - Silver, Gold; (Minor) - Copper, Lead; (Trace) - Tellurium, Antimony, Zinc
Deposit Type: Vein
Development Status: Past Producer
Deposit Model: 84: Alakaline Au-Te (Au-Ag-Te veins)
Host Rock Unit: Uncompahgre Formation
Structure: San Juan Uplift, San Juan Volcanic Field, San Juan Uplift, Unnamed Fault, Unnamed Anticline
Host Rock: Slate, Phyllite
Tectonic Structure: Central Cordillera (Southern Rocky Mtns)

Select Mineral List Type

Standard Detailed Gallery 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: 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:

Baryte
Formula: BaSO4
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Bornite
Formula: Cu5FeS4
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Calaverite
Formula: AuTe2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Calcite
Formula: CaCO3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chalcocite
Formula: Cu2S
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Galena
Formula: PbS
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Hematite
Formula: Fe2O3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Marcasite
Formula: FeS2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Petzite
Formula: Ag3AuTe2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Quartz
Formula: SiO2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Sphalerite
Formula: ZnS
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Sylvanite
Formula: (Au,Ag)2Te4
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Bornite2.BA.15Cu5FeS4
Calaverite2.EA.10AuTe2
Chalcocite2.BA.05Cu2S
Galena2.CD.10PbS
Marcasite2.EB.10aFeS2
Petzite2.BA.75Ag3AuTe2
Sphalerite2.CB.05aZnS
Sylvanite2.EA.05(Au,Ag)2Te4
'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
Petzite2.4.3.3Ag3AuTe2
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Calaverite2.12.13.2AuTe2
Marcasite2.12.2.1FeS2
Sylvanite2.12.13.3(Au,Ag)2Te4
Group 3 - SULFOSALTS
3 <ø < 4
'Tetrahedrite Subgroup'3.3.6.1Cu6(Cu4C2+2)Sb4S12S
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Limonite'-(Fe,O,OH,H2O)

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
CCarbon
C CalciteCaCO3
OOxygen
O CalciteCaCO3
O BaryteBaSO4
O Limonite(Fe,O,OH,H2O)
O HematiteFe2O3
O QuartzSiO2
SiSilicon
Si QuartzSiO2
SSulfur
S Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
S ChalcociteCu2S
S MarcasiteFeS2
S BorniteCu5FeS4
S SphaleriteZnS
S GalenaPbS
S BaryteBaSO4
CaCalcium
Ca CalciteCaCO3
FeIron
Fe MarcasiteFeS2
Fe BorniteCu5FeS4
Fe Limonite(Fe,O,OH,H2O)
Fe HematiteFe2O3
CuCopper
Cu Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Cu ChalcociteCu2S
Cu BorniteCu5FeS4
ZnZinc
Zn SphaleriteZnS
AgSilver
Ag Sylvanite(Au,Ag)2Te4
Ag PetziteAg3AuTe2
SbAntimony
Sb Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
TeTellurium
Te CalaveriteAuTe2
Te Sylvanite(Au,Ag)2Te4
Te PetziteAg3AuTe2
BaBarium
Ba BaryteBaSO4
AuGold
Au CalaveriteAuTe2
Au Sylvanite(Au,Ag)2Te4
Au PetziteAg3AuTe2
PbLead
Pb GalenaPbS

Other Regions, Features and Areas containing this locality

North America
North America PlateTectonic Plate
USA

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