South Randol Mine (New Almaden - South Randol), New Almaden, New Almaden Mining District, Santa Clara County, California, USAi
| Regional Level Types | |
|---|---|
| South Randol Mine (New Almaden - South Randol) | Mine |
| New Almaden | - not defined - |
| New Almaden Mining District | Mining District |
| Santa Clara County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 10' 45'' 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) | 11.4km |
| Seven Trees | 1,788 (2018) | 11.9km |
| Communications Hill | 11,267 (2019) | 12.2km |
| Los Gatos | 30,705 (2017) | 12.5km |
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 |
|---|---|---|
| Santa Clara Valley Gem & Mineral Society | San Jose, California | 18km |
| 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 | 48km |
Mindat Locality ID:
92336
Long-form identifier:
mindat:1:2:92336:0
GUID (UUID V4):
a6dc6a4a-5ce1-49d0-a07b-7ad27e08afe8
A former Hg occurrence/mine located 2.3 km (1.4 miles) W of New Almaden (W of Randol shaft; located on the St. George shaft), on county owned land (Almaden Quicksilver County Park). Discovered in 1871. MRDS database accuracy for this location is not stated.
Mineralization is hosted in Late Cretaceous serpentinite and sedimentary rocks. The ore body is irregular, strikes E and dips 55N. Controls for ore emplacement included local fractures trending N. Local alteration includes silica carbonate alteration of serpentine. Local rocks include rocks of the Franciscan Complex, unit 1 (Coast Ranges).
Local structures include a serpentine-sediment contact.
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
2 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:
| ⓘ Cinnabar Formula: HgS |
| ⓘ Mercury Formula: Hg |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Mercury | 1.AD.05 | Hg |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Cinnabar | 2.CD.15a | HgS |
| Unclassified | |||
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| O | Oxygen | |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Si | Silicon | |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| S | Sulfur | |
| S | ⓘ Cinnabar | HgS |
| Hg | Mercury | |
| Hg | ⓘ Cinnabar | HgS |
| Hg | ⓘ Mercury | Hg |
Other Databases
| Link to USGS MRDS: | 10103808 |
|---|
Other Regions, Features and Areas containing this locality
North America
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Franciscan DomainDomain
USA
- California
- Santa Cruz MountainsMountain Range
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References
