Lower Butler prospect, Tejon Tin project (Gorman Tin project), Lebec, Gorman District, Tehachapi Mountains, Kern County, California, USAi
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Latitude & Longitude (WGS84):
34° 50' 11'' North , 118° 43' 22'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Lebec | 1,468 (2011) | 13.0km |
| Frazier Park | 2,691 (2011) | 20.3km |
| Lake of the Woods | 917 (2011) | 25.1km |
| Stallion Springs | 2,488 (2011) | 29.0km |
| Lake Hughes | 649 (2011) | 30.9km |
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 |
|---|---|---|
| Tehachapi Valley Gem & Mineral Society | Tehachapi, California | 41km |
A Sn occurrence/prospect located in sec. 30, T9N, R17W, MDM, 12.8 km (8.0 miles) E of Lebec and 12.6 km (7.8 miles) ENE of Gorman (Los Angeles County), W of the South portal No. 4 of the aquaduct. MRDS database stated accuracy for this location is 10 meters. Located 2,000 feet E of the Upper Butler prospect, and within a few hundred feet of the edge of valley alluvium.
Mineralization is a contact metasomatic Sn deposit hosted in limestone. Two small, iron-rich tactite bodies occur in bleached, recrystallized limestone adjacent to granite. In the limestone, a strong set of joints strike E and dip steeply S. The granite does not crop out, but float is present. Deeply weathered tactite is mainly massive brown garnet with magnetite, hematite and limonite. Thin films of malachite and chrysocolla coat fractures in the N ore body. Cassiterite is rare. Associated rocks include Late Cretaceous granite. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges) and/or limestone of probable Paleozoic or Mesozoic age.
Workings include surface openings.
Analytical data results: ORE GRADE ASSAYED TRACE TO 1.9 PERCENT TIN
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Cassiterite Formula: SnO2 Description: Rare here. |
| ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 Description: Occurs as fracture coatings. |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 Description: Brown, massive. |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ 'Limonite' |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 Description: Occurs as fracture coatings. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 9 - Silicates | |||
| ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Al | Aluminium | |
| Al | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | Silicon | |
| Si | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Fe | Iron | |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Cu | Copper | |
| Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
Other Databases
| Link to USGS MRDS: | 10033754 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- Sierra NevadaMountain Range
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060291030
