San Pedro-Almaden Area Mine (New Almaden - San Pedro-Almaden Area), New Almaden, New Almaden Mining District, Santa Clara County, California, USAi
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Latitude & Longitude (WGS84):
37° 10' 36'' North , 121° 50' 48'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Lexington Hills | 2,421 (2011) | 11.3km |
| Cambrian Park | 3,282 (2018) | 11.6km |
| Seven Trees | 1,788 (2018) | 12.2km |
| Communications Hill | 11,267 (2019) | 12.5km |
| Los Gatos | 30,705 (2017) | 12.6km |
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 |
|---|---|---|
| Santa Clara Valley Gem & Mineral Society | San Jose, California | 19km |
| Santa Cruz Mineral and Gem Society | Santa Cruz, California | 28km |
| Peninsula Gem & Geology Society, Inc. | Los Altos, California | 33km |
| Sequoia Gem and Mineral Society | Redwood City, California | 49km |
A former Hg occurrence/mine located 2.3 km (1.4 miles) W of New Almaden, on county owned land (Almaden Quicksilver County Park). Discovered in 1855. Produced during the periods 1850 to 1874 and 1884 to 1893. MRDS database accuracy for this location is not stated.
Mineralization is hosted in Late Cretaceous serpentinite. The ore body is irregular and dips 40NE at a thickness of 30.48 meters. Local alteration
includes the silica carbonate alteration of serpentine. Local rocks include rocks of the Franciscan melange.
Local geologic structures are not apparent.
Workings include unspecified surface and underground openings with a length of 304.8 meters.
Production data are found in: Bailey and Everhart (1964).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
3 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:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Cinnabar Formula: HgS |
| ⓘ Quartz Formula: SiO2 |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Cinnabar | 2.CD.15a | HgS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Unclassified | |||
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| S | Sulfur | |
| S | ⓘ Cinnabar | HgS |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Hg | Mercury | |
| Hg | ⓘ Cinnabar | HgS |
Other Databases
| Link to USGS MRDS: | 10103809 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America PlateTectonic Plate
- California Coast RangesAccretionary Complex
- Franciscan DomainDomain
USA
- California
- Santa Cruz MountainsMountain Range
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