Production place
- CA-CCo-138, Oakley, Contra Costa County44 objects
- NV-Ch-35 (Humboldt Cave), Churchill County, Nevada28 objects
- Bolivian Chaco, Bolivia21 objects
- Luzon Island, Luzon island group, Philippines14 objects
- CA-Ker-38, Goose Lake area, Kern County11 objects
- Cerro de las Monjas, Marcahuamachuco, Northern Peru11 objects
- CA-Ker-46, Goose Lake area, Kern County7 objects
- CA-Ker-47, Kern County, California7 objects
- Carneros Rocks, Kern County, California7 objects
- Torres-Martinez Reservation, Riverside County, California7 objects
- CA-Ker-37, Goose Lake area, Kern County5 objects
- Marcahuamachuco, Huamachuco District, Northern Peru5 objects
- 2 miles below Weitchpec, Klamath River, Humboldt County4 objects
- CA-Ker-33, Kern County, California4 objects
- Tambo de Mora, Chincha Valley, Lima Region4 objects
- Klamath River, Humboldt County, California3 objects
- Stone Lagoon, Humboldt County, California3 objects
- Trinity River, Humboldt County, California3 objects
- CA-Fre-67, Fresno County, California2 objects
- CA-Ker-35, Kern County, California2 objects