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Royal Peacock Group Mines, Virgin Valley District, Virgin Valley, Humboldt Co., Nevada, USA

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Latitude & Longitude (WGS84): 41° 47' 24'' North , 119° 5' 26'' West
Latitude & Longitude (decimal): 41.79000,-119.09056


A group of precious opal lode mining claims known as the Little Pebble, Phantam, Peacock #s 2-4, Royal Peacock #s 1-2, Northern Lights, and April Fool Millsite.

Originally discovered about 1911. Originally owned by Rhinehart & Archevaletta in the 1920's to 1930's. Relocated by Flora Loughead ("Lockheed") and Mark Foster in 1937. Acquired by the Wilson family around 1942 as a "toss-in" for purchasing the April Fool fluorescent opal claims. It has been operated as a commercially productive opal mine and fee dig for many decades. Many large and valuable gem and specimen opals have been recovered from this mine.

Mineral List

Mineral list contains entries from the region specified including sub-localities

1 valid mineral.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Pliocene - Miocene
2.588 - 23.03 Ma
Younger tuffaceous sedimentary rocks

Age: Neogene (2.588 - 23.03 Ma)

Stratigraphic Name: Horse Camp Formation; Esmeralda Formation; Belted Range Tuff; Timber Mountain Tuff; Paintbrush Tuff; Crater Flat Tuff; Muddy Creek Formation; Siebert Tuff

Description: Tuffaceous and other young Tertiary sedimentary rocks. Most of these rocks are sedimentary with a strong volcanic component - a few are tuffaceous with a strong sedimentary component. This unit includes rocks originally mapped as the High Rock sequence in Washoe County; the Horse Camp Formation in northern Nye County; the Esmeralda Formation in Mineral and Esmeralda Counties; older lake beds in Lincoln County; the Belted Range Tuff; the Indian Trail Formation (now abandoned); Timber Mountain, Paintbrush, and Crater Flat Tuffs; Wahmonie and Salyer Formations in southern Nye County; the Siebert Tuff in Esmeralda County; the Muddy Creek Formation in Clark County; and the Thousand Creek and Virgin Valley “beds” in Humboldt County; and other unnamed units. It corresponds to units Ts3 and Tts from the 1978 State map. It is present in all counties.

Lithology: Major:{sedimentary,volcanic}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


Localities in this Region

USA

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 visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Eckert, Allan W. (1997) The World of Opals. (Wiley & Sons, New York): 310-311.


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