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Rosebud Mine (Hecla Rosebud Mine), Rosebud Mining District, Pershing Co., Nevada, USAi
Regional Level Types
Rosebud Mine (Hecla Rosebud Mine)Mine
Rosebud Mining DistrictMining District
Pershing Co.County
NevadaState
USACountry

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Key
Latitude & Longitude (WGS84):
40° 48' 47'' North , 118° 39' 39'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Humboldt119 (2011)41.6km


One of the highest grade gold and silver producers in Nevada, mined by a Hecla-Newmont joint venture between 1997 and 2000.

Harvest Gold has rights to over 1,000 acres surrounding the former Rosebud Mine and in 2011 completed a two-phase exploration program. As of 2013, no newer information is available, and it is assumed that development was not economical.

Mining Method: Overhand cut and fill method with access via a decline. Equipment was rubber-tired, including drill jumbos, rock bolters, 3.5-yard loaders, and 20-ton haul trucks. Typical ore panels were 14 feet high, 18 feet wide and about 80 feet long. These were backfilled with cementitious materials batched at the surface and hauled underground.

Geology: The deposit is part of a large, low-sulfidation hydrothermal system extending throughout most of the Kamma Mountains. Specifically, the deposit is a low-temperature epithermal, quartz-sericite, gold and silver deposit within Miocene andesitic and rhyolitic volcanics and volcaniclastics. The volcanics unconformably overlie a Jurassic/Triassic metasediment basement, which also hosts precious-metal mineralization.

Main structural elements include the east-west trending South Ridge Fault and the northeast trending Rosebud Shear, which displays up to 2,000 feet of left-lateral displacement and about 400 feet of normal displacement. The South Ridge Fault is a mineralized listric normal fault which acted as a conduit for mineralizing fluids.

Mineralization is therefore structurally and stratigraphically controlled. One mechanism takes place thrrough mineralization in the high-angle structures, along flow and bedding planes, and dissemination into specific andesitic volcanic or volcaniclastic facies, characterized by a clay-rich, silica-poor association with precious metals. Another takes place by silica-replacement in the rhyolite host at structures. Usually there is a combination of these at any location.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


12 valid minerals.

Detailed Mineral List:

Acanthite
Formula: Ag2S
Reference: NBMG Spec. Pub. 31 Minerals of Nevada; Min News (2000) 16:10 pp 1,3-10
Baryte
Formula: BaSO4
Reference: NBMG Spec. Pub. 31 Minerals of Nevada; Min News (2000) 16:10 pp 1,3-10; Robert E. Walstrom Collection
Calcite
Formula: CaCO3
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
Gold
Formula: Au
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
Marcasite
Formula: FeS2
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
Miargyrite
Formula: AgSbS2
Reference: NBMG Spec. Pub. 31 Minerals of Nevada; Min News (2000) 16:10 pp 1,3-10; Robert E. Walstrom Collection
Naumannite
Formula: Ag2Se
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
Pyrargyrite
Formula: Ag3SbS3
Reference: Min News (2000) 16:10 pp 1,3-10; Robert E. Walstrom Collection
Pyrite
Formula: FeS2
Reference: NBMG Spec. Pub. 31 Minerals of Nevada; Min News (2000) 16:10 pp 1,3-10
Pyrrhotite
Formula: Fe7S8
Reference: NBMG Spec. Pub. 31 Minerals of Nevada; Robert E. Walstrom Collection
Stibnite
Formula: Sb2S3
Reference: NBMG Spec. Pub. 31 Minerals of Nevada; Robert E. Walstrom Collection
Wavellite
Formula: Al3(PO4)2(OH,F)3 · 5H2O
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
Acanthite2.BA.35Ag2S
Marcasite2.EB.10aFeS2
Miargyrite2.HA.10AgSbS2
Naumannite2.BA.55Ag2Se
Pyrargyrite2.GA.05Ag3SbS3
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Stibnite2.DB.05Sb2S3
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
Wavellite8.DC.50Al3(PO4)2(OH,F)3 · 5H2O

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
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
Naumannite2.4.1.2Ag2Se
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
AmBnXp, with (m+n):p = 2:3
Stibnite2.11.2.1Sb2S3
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
ø = 3
Pyrargyrite3.4.1.2Ag3SbS3
ø = 2
Miargyrite3.7.3.2AgSbS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A3(XO4)2Zq·xH2O
Wavellite42.10.2.1Al3(PO4)2(OH,F)3 · 5H2O

List of minerals for each chemical element

HHydrogen
H WavelliteAl3(PO4)2(OH,F)3 · 5H2O
CCarbon
C CalciteCaCO3
OOxygen
O BaryteBaSO4
O CalciteCaCO3
O WavelliteAl3(PO4)2(OH,F)3 · 5H2O
FFluorine
F WavelliteAl3(PO4)2(OH,F)3 · 5H2O
AlAluminium
Al WavelliteAl3(PO4)2(OH,F)3 · 5H2O
PPhosphorus
P WavelliteAl3(PO4)2(OH,F)3 · 5H2O
SSulfur
S BaryteBaSO4
S MarcasiteFeS2
S PyrargyriteAg3SbS3
S PyriteFeS2
S MiargyriteAgSbS2
S AcanthiteAg2S
S PyrrhotiteFe7S8
S StibniteSb2S3
CaCalcium
Ca CalciteCaCO3
FeIron
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
SeSelenium
Se NaumanniteAg2Se
AgSilver
Ag PyrargyriteAg3SbS3
Ag MiargyriteAgSbS2
Ag AcanthiteAg2S
Ag NaumanniteAg2Se
SbAntimony
Sb PyrargyriteAg3SbS3
Sb MiargyriteAgSbS2
Sb StibniteSb2S3
BaBarium
Ba BaryteBaSO4
AuGold
Au GoldAu

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Nevada Bureau of Mines and Geology (2000), Special Publication 31, Minerals of Nevada.
Mineral News (2000): 16(10): 1, 3-10.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID # 10222196 & 10104130.
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID # 0320270781.

External Links


Other Regions, Features and Areas containing this locality

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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