Columbite Mining Tantalite

Columbite Mining Tantalite

SHAWANO COUNTY Tiny crystals of columbitetantalite a few millimeters across are found in the complex pegmatite exposed south of the Tigerton Dells near Tigerton in the NE 14 SW 14 NE 14 Sec.15 T.26N R.12E. Associated minerals include gadolinite

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