Jo Lu 55 Opal Mine, Virgin Valley, Humboldt County, Nevada, USAi
| Regional Level Types | |
|---|---|
| Jo Lu 55 Opal Mine | Mine |
| Virgin Valley | Valley |
| Humboldt County | County |
| Nevada | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
41° 48' 12'' North , 119° 2' 54'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
"Paraphrased from a book" A precious opal (lode claim) prospect located in the SW 1/4 Section 16 and NW1/4 of Section 21,T45N R26E MDM, Virgin Valley Mining District.
Originally located in 1970 by Royal Peacock Opal Mines Inc., and part of the Joy-Lu Group of mining claims. Subsequently acquired by Jim D. Marks and Leona Rogers of Denio, Nevada, and held as a valid claim until about 1990 when the claim was invalidated by the BLM. Relocated and renamed as the Joy Lu #55 claim by its prior owners, Jim Marks and Leona Rogers, in 1991.
Officially surveyed by BLM in 1988 as part of Mineral Survey #5028. The claim is generally located on the south side of Virgin Valley between the Rainbow Ridge and Royal Peacock Mines. Reported to have been commercially worked in the 1970's. The mining claim is underlain by in-place, horizontal ash, tuff, and tuffaceous sandstone beds.
The deposit has much petrified wood and occasional precious opal as vein fillings and casts. Some fine precious white conk opal with green play-of-color was found here in the early 1990's. Jim Marks' claim to the deposit expired and the locality has been relocated several times by various other parties, including Don Buford et. al., in 2005, and by others afterwards. It is currently owned by John Church owner of Swordfish Mining.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
1 valid mineral.
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:
| ⓘ Opal Formula: SiO2 · nH2O Description: Also replaces pine cones. |
| ⓘ Opal var. Precious Opal Formula: SiO2 · nH2O |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
| ⓘ | var. Precious Opal | 4.DA.10 | SiO2 · nH2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Opal | SiO2 · nH2O |
| H | ⓘ Opal var. Precious Opal | SiO2 · nH2O |
| O | Oxygen | |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Opal var. Precious Opal | SiO2 · nH2O |
| Si | Silicon | |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Opal var. Precious Opal | SiO2 · nH2O |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
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.
Jo Lu 55 Opal Mine, Virgin Valley, Humboldt County, Nevada, USA