Jasper from Santa Clara County, California, USA
USA | |
| |
| USGS Bull 427 |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
USGS Bull 427 | |
| Butler (1995) Rockhounding California, 135. Mason, Anita (1976) The World of Rocks and Minerals. Larousse & Co., Inc., New York. |
Unspecified Gemstone occurrences [4], Paradise Valley, bounded by the Santa Cruz Mountains to the west and the Diablo Range to the east, Santa Clara County, California, USA