Gem Hill, Rosamond Hills, Rosamond, Mojave-Rosamond District (Mojave District), Kern Co., California, USA
|Latitude & Longitude (WGS84):||34° 55' 28'' North , 118° 13' 13'' West|
|Latitude & Longitude (decimal):||34.92444,-118.22028|
A summit and semi-precious gem occurrence located in the SE¼ sec. 26, T10N, R13W, MDM, 5½ miles NW of Rosamond.
Mineral ListMineral list contains entries from the region specified including sub-localities
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
|Zanclean - Aquitanian|
3.6 - 23.03 Ma
|Tertiary pyroclastic and volcanic mudflow deposits, unit 8 (Northern Mojave Desert)|
Age: Neogene (3.6 - 23.03 Ma)
Stratigraphic Name: Gem Hill Formation (part); Kinnick Formation; Pickhandle Formation
Description: Tertiary pyroclastic and volcanic mudflow deposits.
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. 
Localities in this Region
- Kern Co.
- Mojave-Rosamond District (Mojave District)
- Kern Co.
Troxel, Bennie Wyatt & P.K. Morton (1962), Mines and mineral resources of Kern County, California: California Division Mines & Geology County Report No. 1, 370 pp.: 91-92.
Sheppard, R.A. and Gude, A.J. (1964) Reconnaissance of zeolite deposits in tuffaceous rocks of the western Mojave Desert and vicinity, California. USGS Professional Paper 501-C: 114-116.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 317.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 345, 375.