Mount Baldy District, Los Angeles County, California, USAi
| Regional Level Types | |
|---|---|
| Mount Baldy District | Mining District |
| Los Angeles County | County |
| California | State |
| USA | Country |
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Latitude & Longitude:
34° North , 118° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~163km
Type:
A Au-Ag mining area in the San Gabriel Mountains, N. of Glendora.
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-localities4 valid minerals.
Detailed Mineral List:
| ⓘ Molybdenite Formula: MoS2 |
| ⓘ Native Gold Formula: Au Localities: Woodman placer, Mount Baldy, Mount Baldy District, Los Angeles County, California, USA Zanteson Placer Mine, Mount Baldy, Mount Baldy District, Los Angeles County, California, USA Unnamed Au occurrence, San Gabriel Canyon area, Mount Baldy, Mount Baldy District, Los Angeles County, California, USA Poor Fool Placer Mine (Pool Fool Mine), Mount Baldy, Mount Baldy District, Los Angeles County, California, USA |
| ⓘ Piemontite Formula: (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| ⓘ Stilpnomelane Formula: (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O Description: Occurs up to 1 cm diameter in Pelona-type schist. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| Group 9 - Silicates | |||
| ⓘ | Piemontite | 9.BG.05a | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| ⓘ | Stilpnomelane | 9.EG.40 | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| O | Oxygen | |
| O | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Na | Sodium | |
| Na | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Mg | Magnesium | |
| Mg | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Al | Aluminium | |
| Al | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Si | Silicon | |
| Si | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| S | Sulfur | |
| S | ⓘ Molybdenite | MoS2 |
| K | Potassium | |
| K | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Ca | Calcium | |
| Ca | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Mn | Manganese | |
| Mn | ⓘ Piemontite | (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH) |
| Fe | Iron | |
| Fe | ⓘ Stilpnomelane | (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Localities in this Region
- California
- Los Angeles County
- Mount Baldy District
- Big Pines
- Big Horn Mine (Called Back claim; Atlanta claim; Katahdin & Ontario claims; Del Norte claim; Milwaukee claim)
- Blue Jay No. 1 and No. 2 prospects
- El Centro Mine (El Cantina Mine)
- Jumbo-Channel placer
- Mine Gulch
- Native Son Mine
- Next Best placer (Next Rest placer)
- Oak Knoll Placer Mine (Shoemaker claim; Bunker Hill claim)
- San Gabriel River
- Unnamed Au mine (1)
- Mount Baldy
- Big Pines
- Mount Baldy District
- Los Angeles County
- California
- Los Angeles County
- Mount Baldy District
- Mount Baldy
- Dime Canyon
- Dotson Scheelite location
- Eagle Mine
- Ferguson placer
- Glen-Marie placer (Glen Marie Nos. 1; 2; 3 placers)
- Gold Dollar Mine
- Happy Day placer
- Heaton Placer Mine
- Holly Placer Mine (Dot Mine)
- Home Supply Placer Mine
- Horse Shoe Consolidated placer
- Justice placers (Juatica placers)
- Noverto placer (Neverto placer)
- Phelps placer
- Poor Fool Placer Mine (Pool Fool Mine)
- Queenie prospect
- ⭔San Gabriel Canyon area
- San Gabriel Mining Company prospect
- Unnamed Au prospect (1)
- Woodman placer
- Zanteson Placer Mine
- Mount Baldy
- Mount Baldy District
- Los Angeles County
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America Plate
- Mojave DomainDomain
- Peninsular Ranges BatholithVolcanic Arc
Pacific PlateTectonic Plate
USA
- California
- San Gabriel MountainsMountain Range
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
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Happy Day placer, Mount Baldy, Mount Baldy District, Los Angeles County, California, USA