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USA | |
| HANSON , S.L., S IMM ONS , W.B., & F ALSTER , A.U. (2007) : A Reevaluation of Nb - Ta - Ti Oxides from the Rare Metals Mine, Mojave County Pegmatite District, Northwestern Arizona. Rochester Mineralogi cal Symposium Abstracts. No. 34, p. 13-14. |
| Mark Coolbaugh |
| Buchholz, T.W., Falster, A.U. and Simmons, W.B. (2013) Accessory mineralogy of the Black River pegmatite and Humboldt granite, Marquette County, Michigan. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 9-10. |
Silver Crater Mine, Faraday Township, Hastings County, Ontario, Canada