Riebeckite Root Name Group from Black Wonder Mining District, Santa Clara County, California, USA
USA | |
| Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 70. Rogers, Austin Flint (1912), Notes on rare minerals from California: Columbia University, School of Mines Quarterly: 33: 377 |