Pine Hill Mine (Pine Hill Mining Co.; Golden Gate claim; Golden Gate Extension claim; Golden Gate Ext; Thrasher claim), Limekiln, Spenceville Mining District, Nevada County, California, USAi
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Latitude & Longitude (WGS84):
39° 4' 22'' North , 121° 8' 24'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Lake of the Pines | 3,917 (2011) | 8.1km |
| Alta Sierra | 6,911 (2011) | 10.7km |
| Meadow Vista | 3,217 (2011) | 12.9km |
| Penn Valley | 1,621 (2011) | 14.4km |
| Colfax | 2,005 (2017) | 16.4km |
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 |
|---|---|---|
| Nevada County Gem & Mineral Society | Grass Valley, California | 18km |
| Roseville Rock Rollers | Roseville, California | 38km |
| Sutter Buttes Gem & Mineral Society | Marysville, California | 40km |
| Fossils for Fun Society, Inc. | North Highlands, California | 47km |
| Sacramento Valley Detecting Buffs | North Highlands, California | 47km |
A former Au-Cu-Ag-baryte occurrence/mine located in the SE¼ sec. 12, T14N, R7E, MDM, 2.7 km (1.7 miles) WSW of Limekiln and 4.9 km (3.0 miles) WSW of Dew Drop (1 mile N of Wolf), on the N slope of Pine Hill, on private (patented) land. The property comprises 160 acres on 3 claims. MRDS database stated accuracy for this location is 100 meters. May extend into the NE¼ sec. 13.
Mineralization is a vein deposit hosted in diabase and rhyolite. The ore body strikes N3W and dips 62NE at a thickness of 8.23 meters. The vein is 27 feet thick. The gossan is described as non-stained porphyry & rhyolite, limonite & hematite. Local rocks include Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains).
Local geologic structures include a shear zone trending N50W.
Workings include underground openings with a length of 335.28 meters and an overall depth of 60.96 meters and comprised of a 2-compartment shaft, inclined shafts, drifts and an adit.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Baryte Formula: BaSO4 Description: Occurs as seams in diabase. References: |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 |
| ⓘ 'Limonite' |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| Group 9 - Silicates | |||
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| Al | Aluminium | |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | Silicon | |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| Fe | Iron | |
| Fe | ⓘ Hematite | Fe2O3 |
| Cu | Copper | |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Foothills-Wallowa DomainDomain
- Sierra Nevada BatholithVolcanic Arc
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
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060570022
(1908, September) The Copper Resources of California. Bulletin 50. California State Mining Bureaupp.199-200
Dana, Edward S., Ford, William E. (1909) A System of Mineralogy - Second Appendix to the Sixth Edition of Dana's System of Mineralogy. John Wiley & Sons. p.13
