Montebrasite from San Diego County, California, USA
USA | |
| Kunz, G., 1904, Amblygonite, Precious Stones, Mineral Resources of the United States. Calendar Year 1903, p. 313. |
| Michael W. Kieron collection |
| The personal collections of Roland Reed and Mark Mauthner. |
| personal collections (Reed, Mauthner) |
| King, Van (n.d.) Personal communcation. |
| King, Van (n.d.) Personal communcation. |
Royal Mine, Rodriguez Canyon, Banner Mining District, San Diego County, California, USA