Midlothian Mine (Medlothian Mine), Sidney Peak, Kern County, California, USAi
| Regional Level Types | |
|---|---|
| Midlothian Mine (Medlothian Mine) | Mine |
| Sidney Peak | Peak |
| Kern County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
35° 19' 57'' North , 117° 44' 39'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Johannesburg | 172 (2011) | 10.9km |
| California City | 13,277 (2017) | 31.8km |
| Ridgecrest | 28,780 (2017) | 32.9km |
| China Lake Acres | 1,876 (2011) | 34.3km |
| Inyokern | 1,099 (2018) | 35.5km |
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 |
|---|---|---|
| Indian Wells Valley Gem & Mineral Society | Ridgecrest, California | 33km |
A former Mn occurrence/prospect/mine located in the SE¼ sec. 12, T30S, R39E, MDM, about 4.1 km W of Sidney Peak, along the western margin of the Rand Mountains (7 road miles SW of Randsburg), on Bureau of Land Management administered land. Discovered in 1918. MRDS database stated accuracy for this location is 10 meters.
Mineralization is hosted in Neoproterozoic schist. A manganiferous quartzite bed is enclosed in schist. The bed is faulted so that the northern part dips 75W, and the southern part dips 55SW. The highest grade ore is on 2 walls of the quartzite layer. The ore contains rhodonite, spessartine and black oxide with silica both intermixed and as iron-stained skeletons free of Mn. Local rocks include schist of various types and ages, unit 2 (Southern and West-central California).
Analytical data results: Sorted ore grades 32% Mn, 43.4% insoluble.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ 'Manganese Oxides' |
| ⓘ Rhodonite Formula: CaMn3Mn[Si5O15] References: |
| ⓘ Spessartine Formula: Mn2+3Al2(SiO4)3 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Spessartine | 9.AD.25 | Mn2+3Al2(SiO4)3 |
| ⓘ | Rhodonite | 9.DK.05 | CaMn3Mn[Si5O15] |
| Unclassified | |||
| ⓘ | 'Manganese Oxides' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Rhodonite | CaMn3Mn[Si5O15] |
| O | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Al | Aluminium | |
| Al | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Si | Silicon | |
| Si | ⓘ Rhodonite | CaMn3Mn[Si5O15] |
| Si | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Ca | Calcium | |
| Ca | ⓘ Rhodonite | CaMn3Mn[Si5O15] |
| Mn | Manganese | |
| Mn | ⓘ Rhodonite | CaMn3Mn[Si5O15] |
| Mn | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
Other Databases
| Link to USGS MRDS: | 10109377 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
USA
- California
- Kern County
- Rand MountainsMountain Range
- Rand Mining District (Randsburg Mining District)Mining District
- Kern County
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060290006
