Lillie Mine (Mature Consolidated), Slate Range Mining District (Arondo Mining District), Slate Range, Inyo County, California, USAi
| Regional Level Types | |
|---|---|
| Lillie Mine (Mature Consolidated) | Mine |
| Slate Range Mining District (Arondo Mining District) | Mining District |
| Slate Range | Mountain Range |
| Inyo County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
35° 48' 20'' North , 117° 17' 14'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Searles Valley | 1,739 (2011) | 11.3km |
| Ridgecrest | 28,780 (2017) | 40.2km |
| China Lake Acres | 1,876 (2011) | 46.8km |
| Johannesburg | 172 (2011) | 57.5km |
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 |
|---|---|---|
| Searles Lake Gem and Mineral Society, Inc. | Trona, California | 9km |
| Indian Wells Valley Gem & Mineral Society | Ridgecrest, California | 40km |
A Au-Ag-Mn prospect located in secs. 14, 15, 20 & 21, T23S, R43E, MDM, in the Slate Range (11.1 road miles NE of Trona). Discovered in 1937. Owned by F.W. Chappelle (1974) and L.B. Crow (1974). MRDS database stated accuracy for this location is 500 meters.
Mineralization is a Mn deposit. The ore body strikes N70W and dips 33N at a thickness of 1.6 meters. The ore body is a shear zone of hydrothermal origin. Primary Ore Control was faulting. The manganese minerals are psilomelane and pyrolusite in a matrix of jasper, quartz and iron (??). The Mn ore is in a series of metamorphosed sedimentary rocks lying on the hanging wall of an intrusive granite. The Mn occurs in a gossan zone in irregular areas, mostly at the footwall of the limestone. The gossan includes Mn & Fe oxides, brown jasper and quartz vein material, and some sulphur and gypsum. Much of the Mn is in the form of crusts and stains. Microscopic studies in 1918 show that Mn oxides were derived from gedrite and garnet rock. Local rocks include Precambrian rocks, undivided, unit 1 (Death Valley) and/or Quaternary alluvium and marine deposits.
Workings include surface and underground openings.
Analytical data results: The ore grade was estimated at 20 to 30% Mn.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
4 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ 'Psilomelane' |
| ⓘ Pyrolusite Formula: Mn4+O2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sulphur Formula: S8 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Sulphur | 1.CC.05 | S8 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| Unclassified | |||
| ⓘ | 'Psilomelane' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| O | Oxygen | |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Pyrolusite | Mn4+O2 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Sulphur | S8 |
| Ca | Calcium | |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Mn | Manganese | |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
Other Databases
| Link to USGS MRDS: | 10033473 |
|---|
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
- Sierra NevadaMountain Range
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060270014
