U.S. DEPARTMENT OF THE INTERIORBUREAU OF LAND MANAGEMENT
|Central Coast Field Office|
Minerals Management by the Bureau of Land Management includes hard rock mining, fluid minerals like oil & gas, and renewable energy like geothermal. In California the Bureau of Land Management manages all of these energy and mineral resources. Below are some common definitions and terminology with helpful links to find more information.
Locatable minerals are minerals that may be “located” with a mining claim under the General Mining Law of 1872, (Act of May 10, 1872 (17. Stat. 92; 30 U.S.C. 28)), as amended. They include, but are not limited to, gold, silver, precious gems, bentonite and gypsum.
Leasable minerals are those minerals on public lands where the land is leased to individuals for their exploration and development and are subdivided into two classes: fluid and solid. Fluid minerals include oil & gas, geothermal resources, and associated by-products (oil shale, native asphalt, oil impregnated sands, etc.). Solid leasable minerals are are specific minerals such as coal and phosphates leased under the mineral leasing acts and Reorganization Plan No. 3 of 1946 (acquired lands), Mineral Leasing Act of 1920, as amended and supplemented, Mineral Leasing Act for Acquired Lands of 1947, as amended, and the Geothermal Steam Act of 1970, as amended.
Salable minerals, or mineral materials, are common varieties of minerals and building materials such as sand, stone, gravel, pumice, pumicite, cinders, and clay. The BLM manages salable minerals under the Materials Act of 1947, as amended, and implementing regulations (43 CFR 3600), which authorize disposal either through a contract of sale or a free use permit. Generally, salable minerals are widespread, of low unit value, and are often used for construction or landscaping materials. Their value depends largely on market factors, quality of the material, availability of transportation, and transportation costs.
For more information:
State of California - Minerals and Mining: