Silver Rule Mine (Chambers Mine; Crystal Spring Mine), Crystal Spring, Kingston Range, Death Valley-Kingston Range District, Inyo Co., California, USA
|Latitude & Longitude (WGS84):||35° 48' 12'' North , 115° 57' 35'' West|
|Latitude & Longitude (decimal):||35.80333,-115.95972|
A former Zn-Au-Pb-Ag mine located in sec. 25, T20N, R9E, SBM, 0.9 km (0.6 mile) N of Crystal Spring (spring), on Bureau of Land Management land (located claim). Discovered and first operated in 1910. Owned & operated by John and Sylvia Prato (99% ?) (time frame uncertain). MRDS database stated accuracy for this location is 10 meters.
NOTE: There is another Crystal Spring Mine (primary name), located at Crystal Spring, listed as lying in San Bernardino County; however, it straddles the county line and part of it is apparently in Inyo County (as per adit symbols on the topo map).
The ore body strikes N70W and dips 60N at a thickness of 3 meters, a width of 75 meters and a length of 100 meters. The depth-to-top is 75 meters. The body is tabular in a fissure vein. The primary mode of origin was hydrothermal. Primary ore control was faulting and the secondary was lithology. The degree of wallrock alteration is unknown. Local rocks include Precambrian rocks, undivided, unit 1 (Death Valley).
Workings include underground openings.
4 valid minerals.
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
|Mesozoic - Paleoproterozoic|
66 - 2500 Ma
|Precambrian rocks, undivided, unit 1 (Death Valley)|
Age: to Cretaceous (66 - 2500 Ma)
Stratigraphic Name: Beck Spring Dolomite; Crystal Spring Formation; Deep Spring Formation; Johnnie Formation; Kingston Peak Formation; Marvel Dolomitic Limestone; Middle Park Formation; Mountain Girl Quartzite; Noonday Dolomite; Pahrump Group; Panamint Metamorphic Complex; Reed Dolomite; Sourdough Limestone; Stirling Quartzite; Wildrose Formation; World Beater Porphyry; Wyman Formation
Comments: Death Valley region. Primarily sandstone, shale, dolomite, limestone, and conglomerate of Middle and Late Proterozoic age, but also includes some older Precambrian crystalline rocks. As mapped, includes some rocks of probable Mesozoic age
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. 
California Journal of Mines and Geology, California Division of Mines (1953) (Report 49): 49(1): 113.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10163274.
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060270265.