Shotgun Creek Mine (Gill Mine; Primm and Dougherty group; Noble Electric Steel Company property), Sims Station, Klamath Mountains, Shasta County, California, USAi
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Latitude & Longitude (WGS84):
41° 3' 36'' North , 122° 23' 26'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Lakehead | 461 (2011) | 17.2km |
| Dunsmuir | 1,582 (2017) | 19.2km |
| Coffee Creek | 217 (2011) | 26.9km |
| Trinity Center | 267 (2011) | 27.3km |
| Mount Shasta | 3,296 (2017) | 28.6km |
Mindat Locality ID:
92926
Long-form identifier:
mindat:1:2:92926:7
GUID (UUID V4):
2a58df7c-0b94-40ef-af33-8d668db37602
A former Cr mine located in secs. 13, 14, 23 & 24, T37N, R4W, MDM, 2.8 km (9,000 feet) WSW of Sims Station, 3.3 km (2.0 miles) WSW of Sims, and 10.7 km (6.6 miles) SW of Castella, on the divide between the North Fork Shotgun Creek and the South Fork Shotgun Creek, just W of their confluence to form Shotgun Creek. Patented claim(s) (private land). Owned by John A. and Ann C. O'Malley (100.00%), 814 S. Leland St., San Pedro, Ca. 90731 (1976). MRDS database stated accuracy for this location is 10 meters.
Mineralization is hosted in dunite and serpentinite. The ore body strikes N40E, dips 90N, at 5 meters thick, awidth of 30 meters, and a length of 230 meters. Depth to top is 0.0 meters. The ore body(ies) are disseminated, tabular, irregular and/or lenticular. Primary mode of origin is magnatic differentiation. Primary ore control was lithology. Wallrock alteration is moderate (carbonitization). Local rocks include ultramafic rocks, chiefly Mesozoic, unit 1 (Trinity Ophiolite). The mine is located near the eastern edge of a large tabular-shaped body of peridotite with an anticlinal structure that occurs in the NW corner of the county.
Workings incloude surface and underground openings. The underground operations are 29 meters long at an overall depth of 9 meters. The mining method was open stope. Workings consisted of 4 small open cuts and two adits averaging 10 meters each (1975). Workings are caved at the portal(s).
Production data are found in: Wells, F.G. and Hawkes, H.E. (1965) Chromite deposits of Shasta, Tehama, Trinity and Humboldt counties, California. California Division Mines and Geology Bulletin 134, part 1, chapter 3: 157.
Assay analyses results: (1900): ^43.9% Cr2o3, 12.4% Fe, Cr To Fe Ratio 2.3:1.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| β Formula: Fe2+Cr3+2O4 |
| β Magnesiochromite Formula: MgCr2O4 References: |
| β Nickeline Formula: NiAs |
| β 'Pyroxene Group' Formula: ADSi2O6 |
| β 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 References: |
| β Uvarovite Formula: Ca3Cr2(SiO4)3 Description: Occurs on chromite. References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Nickeline | 2.CC.05 | NiAs |
| Group 4 - Oxides and Hydroxides | |||
| β | Chromite ? | 4.BB.05 | Fe2+Cr3+2O4 |
| β | Magnesiochromite | 4.BB.05 | MgCr2O4 |
| Group 9 - Silicates | |||
| β | Uvarovite | 9.AD.25 | Ca3Cr2(SiO4)3 |
| Unclassified | |||
| β | 'Pyroxene Group' | - | ADSi2O6 |
| β | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Serpentine Subgroup | D3[Si2O5](OH)4 |
| O | Oxygen | |
| O | β Chromite | Fe2+Cr23+O4 |
| O | β Magnesiochromite | MgCr2O4 |
| O | β Uvarovite | Ca3Cr2(SiO4)3 |
| O | β Pyroxene Group | ADSi2O6 |
| O | β Serpentine Subgroup | D3[Si2O5](OH)4 |
| Mg | Magnesium | |
| Mg | β Magnesiochromite | MgCr2O4 |
| Si | Silicon | |
| Si | β Uvarovite | Ca3Cr2(SiO4)3 |
| Si | β Pyroxene Group | ADSi2O6 |
| Si | β Serpentine Subgroup | D3[Si2O5](OH)4 |
| Ca | Calcium | |
| Ca | β Uvarovite | Ca3Cr2(SiO4)3 |
| Cr | Chromium | |
| Cr | β Chromite | Fe2+Cr23+O4 |
| Cr | β Magnesiochromite | MgCr2O4 |
| Cr | β Uvarovite | Ca3Cr2(SiO4)3 |
| Fe | Iron | |
| Fe | β Chromite | Fe2+Cr23+O4 |
| Ni | Nickel | |
| Ni | β Nickeline | NiAs |
| As | Arsenic | |
| As | β Nickeline | NiAs |
Other Databases
| Link to USGS MRDS: | 10043691 |
|---|
Other Regions, Features and Areas containing this locality
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060890
