McKnight Mine (Lucky Star Mine; Lucky Star claims), Glamis, Chocolate Mountains Mining District, Chocolate Mountains, Imperial County, California, USAi
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Latitude & Longitude (WGS84):
33° 5' 16'' North , 114° 56' 3'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Cibola | 250 (2011) | 35.7km |
| Palo Verde | 171 (2011) | 42.7km |
| Los Algodones | 4,874 (2015) | 47.0km |
| Mérida | 505 (2018) | 47.5km |
| Winterhaven | 394 (2011) | 47.8km |
A former fire clay (refractory)-U deposit/mine located in the NW¼ sec. 36, T12S, R19E SBM, 10 miles NE of Glamis, in the central Chocolate Mountains. MRDS database stated accuracy for this location is 500 meters.
Mineralization is hosted in the Borrego Formation (metasedimentary rock). The ore body strikes N70E and dips 50SE at a thickness of 15.24 meters and a length of 457.2 meters. Controls for ore emplacement included a fault in sericite mica schist overlain by quartzite. A hydrothermally altered zone along a fault contact between metasedimentary rocks and rhyolite porphyry. The zone of alteration is 25 to 30 feet wide. Abnormal radioactivity is 3.4 mr/hour. Autunite, carnotite and torbernite minerals occur with quartz, talc, gypsum and calcite. Local alteration includes advanced argillic alteration. Associated rocks include Pliocene rhyolite. Local rocks include Schist of various types and ages, unit 2 (Southern and West-central California).
Workings include surface and underground openings comprised of a 40 foot adit and 100 foot open cut.
Production information: Less than 2,000 tons mined.
Analytical data results: SiO2: 70.0%; Al2O3: 20.50%; K2O: 4.00%; Na2O: 11.56%; TiO2: 6.25%; Fe2O3: 0.05%; LOI: 3.70%.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
6 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:
| ⓘ Autunite Formula: Ca(UO2)2(PO4)2 · 10-12H2O Description: Occurs in the deposit footwall. |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Carnotite Formula: K2(UO2)2(VO4)2 · 3H2O References: |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Torbernite Formula: Cu(UO2)2(PO4)2 · 12H2O References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Carnotite | 4.HB.05 | K2(UO2)2(VO4)2 · 3H2O |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Autunite | 8.EB.05 | Ca(UO2)2(PO4)2 · 10-12H2O |
| ⓘ | Torbernite | 8.EB.05 | Cu(UO2)2(PO4)2 · 12H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| H | ⓘ Carnotite | K2(UO2)2(VO4)2 · 3H2O |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Carnotite | K2(UO2)2(VO4)2 · 3H2O |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| P | Phosphorus | |
| P | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| P | ⓘ Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| S | Sulfur | |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| K | Potassium | |
| K | ⓘ Carnotite | K2(UO2)2(VO4)2 · 3H2O |
| Ca | Calcium | |
| Ca | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| V | Vanadium | |
| V | ⓘ Carnotite | K2(UO2)2(VO4)2 · 3H2O |
| Cu | Copper | |
| Cu | ⓘ Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
| U | Uranium | |
| U | ⓘ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| U | ⓘ Carnotite | K2(UO2)2(VO4)2 · 3H2O |
| U | ⓘ Torbernite | Cu(UO2)2(PO4)2 · 12H2O |
Other Databases
| Link to USGS MRDS: | 10062711 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
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