Oro Grande Mining District, San Bernardino County, California, USAi
| Regional Level Types | |
|---|---|
| Oro Grande Mining District | Mining District |
| San Bernardino County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
34° 35' 56'' North , 117° 19' 59'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: This district is in southwestern San Bernardino County, in the vicinity of the town of Oro Grande, about five miles N of Victorville and 45 miles N of San Bernardino. The gold mines were active during the 1880's, early 1900's and again in the 1930's. Large amounts of cement are produced here now.
Geology and Ore Deposits: Most of the deposits are in the hills NE of Oro Grande. According to Bowen (1954), the area is underlain by schist, quartzite and limestone of the Oro Grande series (Carboniferous); dacite, rhyolite, and latite of the Sidewinder volcanic Series (Triassic (?)); and quartz monzonite. The quartz veins are narrow, and the ore bodies usually are small and irregular. Most of the ore has come from the oxidized zone near the surface, but a few high-grade pockets have been found in the veins. The ore contains free gold and often abundant sulfides, including pyrite, chalcopyrite, sphalerite, and bornite. The Carbonate mine has yielded appreciable amounts of gold- and silver-bearing lead carbonate.
Mines: Apex, Branch, Carbonate, Dents Grandview Lode, Gold Bullion, Gold King, Oro Grande I and II, Sidewinder & Western States.
Geology and Ore Deposits: Most of the deposits are in the hills NE of Oro Grande. According to Bowen (1954), the area is underlain by schist, quartzite and limestone of the Oro Grande series (Carboniferous); dacite, rhyolite, and latite of the Sidewinder volcanic Series (Triassic (?)); and quartz monzonite. The quartz veins are narrow, and the ore bodies usually are small and irregular. Most of the ore has come from the oxidized zone near the surface, but a few high-grade pockets have been found in the veins. The ore contains free gold and often abundant sulfides, including pyrite, chalcopyrite, sphalerite, and bornite. The Carbonate mine has yielded appreciable amounts of gold- and silver-bearing lead carbonate.
Mines: Apex, Branch, Carbonate, Dents Grandview Lode, Gold Bullion, Gold King, Oro Grande I and II, Sidewinder & Western States.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities16 valid minerals.
Rock Types Recorded
Rock list contains entries from the region specified including sub-localities
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Aragonite Formula: CaCO3 Locality: Upper quarries, Oro Grande, Oro Grande Mining District, San Bernardino County, California, USA Description: Occurs as clusters of prismatic crystals. |
| ⓘ Bornite Formula: Cu5FeS4 References: |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Cerussite Formula: PbCO3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ 'Clay minerals' |
| ⓘ Cookeite Formula: (LiAl4◻)[AlSi3O10](OH)8 |
| ⓘ Galena Formula: PbS Localities: Anaco Mine (Red Raven Mine; Red Rover Mine), La Delta, Oro Grande Mining District, San Bernardino County, California, USA Branch Mine (Del Oro; Whatnot; Four Brothers), Silver Mountain, Oro Grande Mining District, San Bernardino County, California, USA Carbonate Mine, Oro Grande, Oro Grande Mining District, San Bernardino County, California, USA Description: Principal ore mineral. |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 |
| ⓘ 'Limonite' |
| ⓘ 'Manganese Oxides' |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Description: Occurs as fine-grained material mixed with quartz. |
| ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 Description: Occurs as fine-grained material mixed with quartz. |
| ⓘ Native Gold Formula: Au Localities: Reported from at least 10 localities in this region. |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 Localities: Reported from at least 10 localities in this region. |
| ⓘ 'Silica' Localities: Reported from at least 6 localities in this region. |
| ⓘ Sphalerite Formula: ZnS References: |
| ⓘ Talc Formula: Mg3Si4O10(OH)2 |
| ⓘ Tenorite Formula: CuO References: |
| ⓘ Tremolite Formula: ◻Ca2Mg5(Si8O22)(OH)2 Locality: Scorpion Mine, Oro Grande, Oro Grande Mining District, San Bernardino County, California, USA Description: Coarse-fibered. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Tenorite | 4.AB.10 | CuO |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| ⓘ | Cerussite | 5.AB.15 | PbCO3 |
| Group 9 - Silicates | |||
| ⓘ | Tremolite | 9.DE.10 | ◻Ca2Mg5(Si8O22)(OH)2 |
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Cookeite | 9.EC.55 | (LiAl4◻)[AlSi3O10](OH)8 |
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| Unclassified | |||
| ⓘ | 'Clay minerals' | - | |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Silica' | - | |
| ⓘ | 'Manganese Oxides' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| H | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Li | Lithium | |
| Li | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| C | Carbon | |
| C | ⓘ Aragonite | CaCO3 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Cerussite | PbCO3 |
| O | Oxygen | |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Cerussite | PbCO3 |
| O | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | ⓘ Tenorite | CuO |
| O | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Mg | Magnesium | |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Mg | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| S | Sulfur | |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| K | Potassium | |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Fe | Iron | |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Tenorite | CuO |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Cerussite | PbCO3 |
| Pb | ⓘ Galena | PbS |
Localities in this Region
- California
- San Bernardino County
- Oro Grande Mining District
- La Delta
- Oro Grande
- Atlas Silica Quarry (Western Refractories Company; Atlas; Atlas deposit)
- Carbonate Mine
- Dents Grandview Mine (Dents Grandview lode; Dent; Dents)
- Embody Mine (Althea)
- Original Canyon Quarry (Oro Grande Quarry)
- Oro Grande Granite Mine
- Oro Grande II Mine (Black Diamond; Scheerer)
- Oro Grande Silica Quarry
- Riverside Cement Company Quarry (Shay Quarry)
- Scorpion Mine
- Shay-Klondike Quarry (Oro Grande Quarry; Klondike; Klondike Mine)
- Sheerer Granite Mine
- Sparkuhle Quarry (Sparkuhke Quarry; Oro Grande Quarry)
- Superior Silica Quarry
- Upper quarries
- Quartzite Mountain
- Oro Grande Mining District
- San Bernardino County
- California
- San Bernardino County
- Oro Grande Mining District
- Quartzite Mountain
- Gold Bullion Mine
- Hoganson Mine
- Macks Peak Quarry (Marks Peak Quarry; Oro Grande Quarry)
- Ozark Mine (Midas; The Big Ten)
- Quartzite Mountain Quarry [1] (Quartzite Mtn Quarry; Emsco Quartzite)
- Quartzite Mountain Quarry [2] (Quartzite Mtn Quarry)
- Riverside Cement Company deposit (Oro Grande Cement plant)
- Southwestern Portland Cement Company Mine (River plant)
- Silver Mountain
- Apex Mine [2] (Apex and Gold Standard)
- Atwood Clay deposits (Excello)
- Branch Mine (Del Oro; El Oro; Branch; Four Brothers; Whatnot)
- Branch Mine (Del Oro; Whatnot; Four Brothers)
- Dewillibie deposits
- Hello Al group
- King Tut prospect
- Liberty Mine
- Marshall and Davis deposits
- Marter-White deposit (Velvet White deposit; River plant)
- Oro Grande I Mine (Copper Mountain Mine)
- Section 26 Gold prospect (Unnamed prospect)
- Western States Mine (Golden State; Gold King; Yankee Maid; Rico No. 1-6 Claims)
- Quartzite Mountain
- Oro Grande Mining District
- San Bernardino County
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
- Mojave DesertDesert
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References
Hoganson Mine, Quartzite Mountain, Oro Grande Mining District, San Bernardino County, California, USA