Bully Hill Mine (Shasta Zinc and Copper Mine; Bully Hill-Rising Star Mine; Copper City Mine; Rising Star Mine; Delamar Mine; Shasta Zinc and Copper Mine), Bully Hill, Bully Hill, Bully Hill District (Winthrop District), East Shasta Copper - Zinc Mining District, Klamath Mountains, Shasta County, California, USAi
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Latitude & Longitude (WGS84):
40° 47' 57'' North , 122° 12' 10'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Mountain Gate | 943 (2011) | 14.2km |
| Bella Vista | 2,781 (2011) | 17.8km |
| Lakehead | 461 (2011) | 18.9km |
| Shasta Lake | 10,159 (2017) | 19.4km |
| Central Valley (historical) | 4,340 (2015) | 19.4km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Shasta Gem & Mineral Society | Redding, California | 28km |
Mindat Locality ID:
92495
Long-form identifier:
mindat:1:2:92495:2
GUID (UUID V4):
9623c9d0-eaa5-495d-86a4-2f7845e92019
A former Cu-Zn-Au-Ag mine located in secs. 15, 16, 21, 22 & 28, T34N, R3W, MDM, on Bully Hill (summit), at Bully Hill (town), 18 miles NE of Redding, on National Forest land. Discovered 1862. Production years were 1877 - , 1902 - 1910, 1915 - 1918, 1920 - 1922, and 1924 - 1927. Owned by S. C. M. Corp. (100.00%), New York (1978); operated by Western Mines Inc., Canada (1978). MRDS database stated accuracy for this location is 1,000 meters.
Mineralization is a massive sulphide deposit (deposit model: 184: massive sulfide, Sierran kuroko), hosted in the Honaker Dolomite and in rhyolite. The ore body is lenticular in form, strikes N10E and dips steeply at 80E, and has a thickness of 12.19 meters, a width of 91.44 meters, and a length of 91.44 meters. Ore bodies occur in and near the prominent northward-striking Bully Hill shear zone. Primary mode of Origin was hydrothermal. Wallrock alteration is moderate and consists of silicification, sulfatization, albitization, chloritization, hydrous mica alteration and pyritization. The ore consists of a mixture of dense, fine-grained hypogene sulphides, secondary minerals, including native copper, bornite, chalcocite, covellite, cuprite, malachite, azurite and limonite. Some free gold and silver are present.
Tuffs and mudstones of the Pit Formation occupy the E side of Bully Hill to an altitude of 1,700 feet. Volcanic and pyroclastic flow rocks of the Bully Hill Rhyolite underlie the rest of the hill. The Bully Hill Rhyolite forms the core of a southward-plunging anticline. The ore bodies are found in the E limb of the steeply-dipping, partly overturned anticline.
Local rocks include Mesozoic volcanic rocks, unit 5 (Northern Sierra Nevada and Eastern Klamath Mountains).
Local structures include faults, folds, and shear zones.
Related tectonic structures include an island arc.
Workings include underground openings with an overall depth of 335.28 meters and a length of 457.2 metres.
Production data are found in: Eric, J.H. (1948).
Production statistics:
Year 1877 - $640,000 in precious metals (period values).
Production from Bully Hill, Rising Star and Copper City mines from 1901 to 1927:
Year 1901 - 5,080,000 kg Cu, 99,000 grams Au, 12,500,000 grams Ag, 45,000 tons of ore.
Year 1909 - 3.61% Cu; 7.83% Zn; 202 grams/mt Ag; 3.34 grams m/t Au. 100,000 metric tons of ore mined.
Year 1922 - 20.9% Zn; 2.42% Cu; 33.7 grams/mt Ag; 0.94 grams/mt Au. 14,000 metric tons of ore mined.
Year 1927 - 22,130,000 kg Cu; 1,391,000 kg Zn; 1,083,000 grams Au and 62,802,000 grams Ag. 526,000 metric tons of ore mined.
Assays of about 9,000 tons of ore in 1922 averaged Zn 22.9 %, Cu $2.42 /ton; Silver 1.19 oz/ton, gold $.033/ton. Cumulative production table are values from Bully Hill and Rising Star Mine combined.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
16 valid minerals.
Detailed Mineral List:
| β Anhydrite Formula: CaSO4 Description: Occurs partially altered to gypsum in deep levels of the mine. References: |
| β Azurite Formula: Cu3(CO3)2(OH)2 References: |
| β Baryte Formula: BaSO4 Description: Occurs as a gangue mineral. |
| β Bornite Formula: Cu5FeS4 Description: A little was found here. References: |
| β Chalcocite Formula: Cu2S |
| β Chalcopyrite Formula: CuFeS2 |
| β Copper Formula: Cu |
| β Covellite Formula: CuS Description: Occurs as an alteration product of chalcopyrite. References: |
| β Galena Formula: PbS References: |
| β Galena var. Silver-bearing Galena Formula: PbS with Ag References: |
| β Gold Formula: Au Description: Placer References: |
| β Gypsum Formula: CaSO4 · 2H2O Description: Occurs as an alteration product from anhydrite in deep levels of the mine. References: |
| β Jarosite Formula: KFe3+3(SO4)2(OH)6 Description: Occurs in gangue of the Cu ore. References: |
| β Malachite Formula: Cu2(CO3)(OH)2 References: |
| β Pyrite Formula: FeS2 |
| β Silver Formula: Ag Habit: Arborescent Description: Occurs as arborescent structures, but only a few. |
| β Sphalerite Formula: ZnS |
| β 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S Description: Occurs in a baryte gangue. Argentiferous material. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| β | Gold | 1.AA.05 | Au |
| β | Silver | 1.AA.05 | Ag |
| β | Copper | 1.AA.05 | Cu |
| Group 2 - Sulphides and Sulfosalts | |||
| β | Chalcocite | 2.BA.05 | Cu2S |
| β | Bornite | 2.BA.15 | Cu5FeS4 |
| β | Covellite | 2.CA.05a | CuS |
| β | Sphalerite | 2.CB.05a | ZnS |
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Galena var. Silver-bearing Galena | 2.CD.10 | PbS with Ag |
| β | 2.CD.10 | PbS | |
| β | Pyrite | 2.EB.05a | FeS2 |
| β | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| Group 5 - Nitrates and Carbonates | |||
| β | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| β | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Anhydrite | 7.AD.30 | CaSO4 |
| β | Baryte | 7.AD.35 | BaSO4 |
| β | Jarosite | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
| β | Gypsum | 7.CD.40 | CaSO4 Β· 2H2O |
List of minerals for each chemical element
Other Databases
| Link to USGS MRDS: | 10262643 |
|---|
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References
