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Jumbo Extension mine, Goldfield Mining District, Esmeralda Co., Nevada, USAi
Regional Level Types
Jumbo Extension mineMine
Goldfield Mining DistrictMining District
Esmeralda Co.County
NevadaState
USACountry

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Key
Latitude & Longitude (WGS84):
37° 43' 5'' North , 117° 13' 6'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Goldfield268 (2011)1.9km
Silver Peak107 (2011)36.8km
Tonopah2,478 (2011)38.8km


Alteration: Pyritization, Alunitization, Kaolinization

Deposit: One ore body actually filled a small erosional gully in shale underly volcanics at 1750. Ft level

Deposit type: Epithermal quartz-alunite Au

Development: Velvet claim was sending small shipments of gold ore by late 1904. The velvet was acquired by the jumbo ext. Mine co. In 1914 from the adjoining goldfield merger mines co. Merger had done exploratory work to 1772 ft, the deepest in the district (in 1911). Jumbo ext. Then found rich ore on the velvet in 1914-15. It was involved in litigation in 1915.

Ore(s): Caldera Ring Fracture Zone

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:

Alunite
Formula: KAl3(SO4)2(OH)6
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Bismuthinite
Formula: Bi2S3
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
Chalcopyrite
Formula: CuFeS2
Reference: NBMG Spec Pub 31 Minerals of Nevada
Famatinite
Formula: Cu3SbS4
Reference: NBMG Spec. Pub. 31 Minerals of Nevada; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Gold
Formula: Au
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
Goldfieldite
Formula: (Cu102)Te4S12S
Reference: Donald Cooke
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Krennerite ?
Formula: Au3AgTe8
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
Marcasite
Formula: FeS2
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
Pyrite
Formula: FeS2
Reference: NBMG Spec. Pub. 31 Minerals of Nevada; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Quartz
Formula: SiO2
Reference: NBMG Spec. Pub. 31 Minerals of Nevada; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Sphalerite
Formula: ZnS
Reference: NBMG Spec Pub 31 Minerals of Nevada
'Tetrahedrite'
Formula: Cu6(Cu4X2)Sb4S13
Reference: NBMG Spec Pub 31 Minerals of Nevada

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Bismuthinite2.DB.05Bi2S3
Chalcopyrite2.CB.10aCuFeS2
Famatinite2.KA.10Cu3SbS4
Goldfieldite2.GB.05(Cu102)Te4S12S
Krennerite ?2.EA.15Au3AgTe8
Marcasite2.EB.10aFeS2
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
'Tetrahedrite'2.GB.05Cu6(Cu4X2)Sb4S13
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Alunite7.BC.10KAl3(SO4)2(OH)6
Group 9 - Silicates
Kaolinite9.ED.05Al2(Si2O5)(OH)4

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
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Bismuthinite2.11.2.3Bi2S3
AmBnXp, with (m+n):p = 1:2
Krennerite ?2.12.13.1Au3AgTe8
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
ø = 4
Famatinite3.2.2.2Cu3SbS4
3 <ø < 4
Goldfieldite3.3.6.6(Cu102)Te4S12S
'Tetrahedrite'3.3.6.1Cu6(Cu4X2)Sb4S13
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Alunite30.2.4.1KAl3(SO4)2(OH)6
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Kaolinite-Al2(Si2O5)(OH)4

List of minerals for each chemical element

HHydrogen
H AluniteKAl3(SO4)2(OH)6
H KaoliniteAl2(Si2O5)(OH)4
OOxygen
O QuartzSiO2
O AluniteKAl3(SO4)2(OH)6
O KaoliniteAl2(Si2O5)(OH)4
AlAluminium
Al AluniteKAl3(SO4)2(OH)6
Al KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Si QuartzSiO2
Si KaoliniteAl2(Si2O5)(OH)4
SSulfur
S BismuthiniteBi2S3
S FamatiniteCu3SbS4
S MarcasiteFeS2
S PyriteFeS2
S TetrahedriteCu6(Cu4X2)Sb4S13
S SphaleriteZnS
S ChalcopyriteCuFeS2
S Goldfieldite(Cu102)Te4S12S
S AluniteKAl3(SO4)2(OH)6
KPotassium
K AluniteKAl3(SO4)2(OH)6
FeIron
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
CuCopper
Cu FamatiniteCu3SbS4
Cu TetrahedriteCu6(Cu4X2)Sb4S13
Cu ChalcopyriteCuFeS2
Cu Goldfieldite(Cu102)Te4S12S
ZnZinc
Zn SphaleriteZnS
AgSilver
Ag KrenneriteAu3AgTe8
SbAntimony
Sb FamatiniteCu3SbS4
Sb TetrahedriteCu6(Cu4X2)Sb4S13
TeTellurium
Te Goldfieldite(Cu102)Te4S12S
Te KrenneriteAu3AgTe8
AuGold
Au GoldAu
Au KrenneriteAu3AgTe8
BiBismuth
Bi BismuthiniteBi2S3

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Shamberger, H.A., (1982), the Story of Goldfield; Nevada Historical Press, Carson City, Nevada, 240 P.

Other Databases

USGS MRDS Record:10046712

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate
USA

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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