Latitude & Longitude (WGS84):
41° 6' 39'' North , 117° 29' 42'' West
Latitude & Longitude (decimal):
Long-form identifier:
mindat:1:2:59619:3
Other/historical names associated with this locality:
Aurum Co. mine; Red Devil mine; Golconda Quicksilver mine
Sec 5 T37N R40E
Structure: Nw-Trending Faults
Deposit: 197 acre property medium brown hornfels with quartz veinlets. Ground appears to be highly sheared in places and quartz veinlets may be associated with these shears. Rock around base of ore bin is composed of what looks like a diorite dike, also with quartz veinlets. Cinnabar was discovered here on so. Pacific land in 1941. The 197 acre property was bought by m. Estridge, and a 40-ft. Inclined shaft was sunk, with no production. After estridge's death, the property reverted to humboldt county from whom it was bought in 1950 by c. Kassebaum, who recovered a small amount of hg using a retort & condenser in 1953. In 1955, lessees davey and bengo bros. Drove a 310-ft adit and raise and built a crusher, stamp mill and 2 concentrating tables at stone corral, 2 1/2 miles e. Of the corral where they planned to concentrate the cinnabar before roasting. ; info.src : 1 pub lit; 3 field observ
Deposit type: Hot-spring Hg
Geology: Cinnabar mineralization is most intense in the 90-ft wide alteration zone in fault zone. Cinnabar occurs in brecciated quartz and calcite veinlets along fault contact. Cinnabar grains also occur in fractured & altered rock, and in apparently barren rock where it is very fine-grained.
Rock formation(s): Harmony Formation
Ore(s): Nw-Trending Fault Zones, Altered
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Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
1 valid mineral.
Rock Types Recorded
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Entries shown in red are rocks recorded for this region.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts |
|---|
| ⓘ | Cinnabar | 2.CD.15a | HgS |
List of minerals for each chemical element
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.
doi:10.2138/am-2024-9486.
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