Starbright Mine (Starbright Tungsten Mine; Starbright deposit), Lane Mountain, San Bernardino Co., California, USA
|Latitude & Longitude (WGS84):||35° 7' 0'' North , 116° 53' 59'' West|
|Latitude & Longitude (decimal):||35.11667,-116.90000|
|Köppen climate type:||BWk : Cold desert climate|
A former W occurrence/mine located in sec. 19, T12N, R1E, SBM, about 5 km NNE of Lane Mountain (summit). Operated during the period 1950 to 1952 at least. MRDS database stated accuracy for this location is 500 meters. This was the most significant W development in California in the 1950's and was still active in 1952. No other information is available.
Mineralization is hosted in metasedimentary rock. The ore body is irregular in form, strikes E-W and dips 45S at a width of 15.24 meters and a length of 30.48 meters. The region is underlain by a comp;lex of plutonic igneous rocks ranging from quartz diorite to gabbro, within the complex are masses of metamorphosed sediments. Scheelite is disseminated through the tactite. Local rocks include pre-Cenozoic metasedimentary and metavolcanic rocks undivided and/or Mesozoic gabbroic rocks, unit 2 (undivided).
Workings include surface and underground openings comprised of an open pit initially, then an inclined shaft 25S for 80 feet, with an easterly drift on the 80 foot level for 30 feet.
Production data are found in: Wright, L.A., et al (1953).
Production statistics: Year: 1951 (period = 1951) (estimate): WO3 recovery percentage at 2 weight percent.
2 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
|Cretaceous - Triassic|
66 - 252.17 Ma
|Mesozoic gabbroic rocks, unit 2 (undivided)|
Age: Mesozoic (66 - 252.17 Ma)
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. 
Hazenbush, George C. (1952), Geology of the Starbright tungsten mine, San Bernardino County, California: California Journal of Mines and Geology: 48: 201-206.
Wright, L.A., et al (1953), Mines and mineral resources of San Bernardino County, California: California Journal of Mines and Geology, California Division of Mines (Report 49): 49(1-2): 152-153.
Bateman, Paul C. & William P. Irwin (1954), Tungsten in southeastern California: California Division Mines & Geology Bulletin 170, Chap. VIII: 35-36.
Lemmon, Dwight Moulton and Tweto, O.L. (1962) Tungsten in the United States, exclusive of Alaska and Hawaii. USGS Mineral Investigative Resources Map MR-25.
Oesterling, W.A. and Spurck, W.H. (1964), Minerals for Industry, Summary of Geological Survey 1955 - 1961: Vol III - 242 pp., Southern California, Southern Pacific Company, San Francisco, CA 94105: 153-154.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 331.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 337.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10008578 & 10140664.
U.S. Bureau of Mines (1995), Minerals Availability System/Mineral Industry Location System (MAS/MILS): file #0060710382.