Columbite / Niobite
- Locale: Minas Gerais, Brazil. 2
- Item #: a777
- Availability: In Stock
- Weight: 64.00 g
- L x W x H: 1.25 in x 1.25 in x 1.00 in
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$245.00
Complete crystal of Columbite / Niobite, the main source for two of the rare earths, Niobium and Tantalum. In the past, Niobium was also called "Columbium."