Jasper from Mohave County, Arizona, USA
USA | |
| csd.unl.edu (n.d.) http://csd.unl.edu/agates |
| Mouat, M. M. (1962) Manganese oxides from the Artillery Mountains area, Arizona. American Mineralogist, 47 (5-6) 744-757 |
| Theodore, T.G., et al (1987), USGS PP 1361: 139 (table 11). |
| Jones, E.L., Jr. & F.L. Ransome (1920), Deposits of manganese ore in Arizona, USGS Bull. 710-D: 158. |
| Univ. of AZ Bull. 41 (1916-17), Mineralogy of Useful Minerals in AZ: 42. |