| Lat / long: | -18.42114, -41.71253 |
| Primary: | Niobium (Columbium), Tantalum, Gemstone, Mica |
| Ore: | Aquamarine, Muscovite, Tantalite |
| Gangue: | Amblygonite, Biotite, Cassiterite, Cleavelandite, Feldspar, Lepidolite, Phenacite, Quartz, Tourmaline |
| Orebody form: | SILL-LIKE WITH CURVED, IRREGULAR CONTACTS |
| Operation type: | Unknown |
| Production size: | Yes |
| Development status: | Producer |
| First production started: | 1908 |
| Host type: | Pegmatite |
| Associated type: | Amphibole Schist |
| Structure: | Asymmetric And Overturned To West Isoclinal Antiform With N25w, 60ne Axial Plane And N10 Plinge Of The Axis. |
| MRDS | TC42488 |
| DEP | 10066333 |
| Reference | {Deposit:: PECORA, W.T., KLEPPER, M.R., LARRABEE, D.M., BARBOSA, A.L.M., AND FRAYHA, RESK, 1950, MICA DEPOSITS IN MINAS GERAIS, BRAZIL: U.S. GEOLOGICAL SURVEY BULLETIN 964-C, P. 205-305.}{Deposit:: PECORA, W.T., AND BARBOSA, A.L.M., 1944, THE GOLCONDA PEGMATITE MINE, MUNICIPIO OF GOVERNADOR VALADARES, MINAS GERAIS, BRAZIL: U.S. GEOLOGICAL SURVEY UNPUBLISHED REPORT 14P.}{Other Database:: CIMRI}{Production:: PECORA AND BARBOSA (1944); PECORA AND BARBOSA (1944), PECORA ET AL (1950).} |
| Reporter | Page, Norman J. |