Slate Mountain District, Slate Mountains, El Dorado County, California, USAi
| Regional Level Types | |
|---|---|
| Slate Mountain District | Mining District |
| Slate Mountains | Mountain Range |
| El Dorado County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° North , 120° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Type:
Köppen climate type:
A few small lode mines and prospects exist in the general vicinity of Slate Mountain, which is in north-central El Dorado County about 10 miles northeast of Placerville and 10 miles southeast of Georgetown. The veins are narrow and occur in slate and schist. Years ago several small but rich surface pockets were recovered. There are several tungsten prospects in the area.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
Mineral list contains entries from the region specified including sub-localities10 valid minerals.
Detailed Mineral List:
| ⓘ Cacoxenite Formula: Fe3+24AlO6(PO4)17(OH)12 · 75H2O Description: Occurs as micro-balls and radiating spheres perched on wavellite. |
| ⓘ Crandallite Formula: CaAl3(PO4)(PO3OH)(OH)6 Colour: Light buff to white Description: Sugary. |
| ⓘ Hinsdalite Formula: PbAl3(PO4)(SO4)(OH)6 Colour: Golden yellow to greenish yellow. Description: Occurs as flakes and masses on quartz. |
| ⓘ Native Gold Formula: Au Localities: Bret Harte Mine (Safeguard No. 1), Slate Mountain, Slate Mountain District, Slate Mountains, El Dorado County, California, USA Ida & Edith Mine, Slate Mountain, Slate Mountain District, Slate Mountains, El Dorado County, California, USA Independence Mine [1], Slate Mountain, Slate Mountain District, Slate Mountains, El Dorado County, California, USA Rip Van Winkle Mine, Slate Mountain, Slate Mountain District, Slate Mountains, El Dorado County, California, USA |
| ⓘ Quartz Formula: SiO2 Localities: Reported from at least 6 localities in this region. |
| ⓘ Quartz var. Smoky Quartz Formula: SiO2 |
| ⓘ Rutile Formula: TiO2 |
| ⓘ Strengite Formula: FePO4 · 2H2O |
| ⓘ Turquoise Formula: CuAl6(PO4)4(OH)8 · 4H2O Locality: Slate Mountain, Slate Mountain District, Slate Mountains, El Dorado County, California, USA References: |
| ⓘ Variscite Formula: AlPO4 · 2H2O Habit: Tabular; bladed; blocky Description: Transparent to milky. References: |
| ⓘ Wavellite Formula: Al3(PO4)2(OH)3 · 5H2O Habit: Prismatic Colour: Colourless; pale green (massive material) Description: Occurs as veins and crusts in quartz in well-formed prismatic crystals and massive material. References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | var. Smoky Quartz | 4.DA.05 | SiO2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Hinsdalite | 8.BL.05 | PbAl3(PO4)(SO4)(OH)6 |
| ⓘ | Crandallite | 8.BL.10 | CaAl3(PO4)(PO3OH)(OH)6 |
| ⓘ | Strengite | 8.CD.10 | FePO4 · 2H2O |
| ⓘ | Variscite | 8.CD.10 | AlPO4 · 2H2O |
| ⓘ | Cacoxenite | 8.DC.40 | Fe3+24AlO6(PO4)17(OH)12 · 75H2O |
| ⓘ | Wavellite | 8.DC.50 | Al3(PO4)2(OH)3 · 5H2O |
| ⓘ | Turquoise | 8.DD.15 | CuAl6(PO4)4(OH)8 · 4H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Cacoxenite | Fe243+AlO6(PO4)17(OH)12 · 75H2O |
| H | ⓘ Crandallite | CaAl3(PO4)(PO3OH)(OH)6 |
| H | ⓘ Hinsdalite | PbAl3(PO4)(SO4)(OH)6 |
| H | ⓘ Strengite | FePO4 · 2H2O |
| H | ⓘ Turquoise | CuAl6(PO4)4(OH)8 · 4H2O |
| H | ⓘ Variscite | AlPO4 · 2H2O |
| H | ⓘ Wavellite | Al3(PO4)2(OH)3 · 5H2O |
| O | Oxygen | |
| O | ⓘ Cacoxenite | Fe243+AlO6(PO4)17(OH)12 · 75H2O |
| O | ⓘ Crandallite | CaAl3(PO4)(PO3OH)(OH)6 |
| O | ⓘ Hinsdalite | PbAl3(PO4)(SO4)(OH)6 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Quartz var. Smoky Quartz | SiO2 |
| O | ⓘ Strengite | FePO4 · 2H2O |
| O | ⓘ Turquoise | CuAl6(PO4)4(OH)8 · 4H2O |
| O | ⓘ Variscite | AlPO4 · 2H2O |
| O | ⓘ Wavellite | Al3(PO4)2(OH)3 · 5H2O |
| Al | Aluminium | |
| Al | ⓘ Cacoxenite | Fe243+AlO6(PO4)17(OH)12 · 75H2O |
| Al | ⓘ Crandallite | CaAl3(PO4)(PO3OH)(OH)6 |
| Al | ⓘ Hinsdalite | PbAl3(PO4)(SO4)(OH)6 |
| Al | ⓘ Turquoise | CuAl6(PO4)4(OH)8 · 4H2O |
| Al | ⓘ Variscite | AlPO4 · 2H2O |
| Al | ⓘ Wavellite | Al3(PO4)2(OH)3 · 5H2O |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Smoky Quartz | SiO2 |
| P | Phosphorus | |
| P | ⓘ Cacoxenite | Fe243+AlO6(PO4)17(OH)12 · 75H2O |
| P | ⓘ Crandallite | CaAl3(PO4)(PO3OH)(OH)6 |
| P | ⓘ Hinsdalite | PbAl3(PO4)(SO4)(OH)6 |
| P | ⓘ Strengite | FePO4 · 2H2O |
| P | ⓘ Turquoise | CuAl6(PO4)4(OH)8 · 4H2O |
| P | ⓘ Variscite | AlPO4 · 2H2O |
| P | ⓘ Wavellite | Al3(PO4)2(OH)3 · 5H2O |
| S | Sulfur | |
| S | ⓘ Hinsdalite | PbAl3(PO4)(SO4)(OH)6 |
| Ca | Calcium | |
| Ca | ⓘ Crandallite | CaAl3(PO4)(PO3OH)(OH)6 |
| Ti | Titanium | |
| Ti | ⓘ Rutile | TiO2 |
| Fe | Iron | |
| Fe | ⓘ Cacoxenite | Fe243+AlO6(PO4)17(OH)12 · 75H2O |
| Fe | ⓘ Strengite | FePO4 · 2H2O |
| Cu | Copper | |
| Cu | ⓘ Turquoise | CuAl6(PO4)4(OH)8 · 4H2O |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Hinsdalite | PbAl3(PO4)(SO4)(OH)6 |
Localities in this Region
- California
- El Dorado County
- Slate Mountains
- El Dorado County
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Shoofly-Olds Ferry DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- Sierra NevadaMountain Range
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References
Slate Mountain, Slate Mountain District, Slate Mountains, El Dorado County, California, USA