Biotite from selected localities.
USA | |
| Kunz, G. F. 1905. Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: pages 140-142. |
Foord, Eugene E. et al (1989), Mineralogy and Paragenesis of the Little Three Mine Pegmatites, Ramona District, San Diego County, California. Mineralogical Record, 20(2): p. 106. | |
Foord, Eugene E. et al (1989), Mineralogy and Paragenesis of the Little Three Mine Pegmatites, Ramona District, San Diego County, California. Mineralogical Record, 20(2): p. 110. | |
Kunz, G. F. 1905. Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: p. 148-49. | |
Kunz, G. F. 1905. Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: p. 146-47. |