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Rad Man Minerals

Columbite - Etta Mine, Keystone, South Dakota, USA

Columbite - Etta Mine, Keystone, South Dakota, USA

Regular price $60.00 USD
Regular price Sale price $60.00 USD
Sale Sold out

Fe2+Nb2O6

Here is one for you rare-earth collectors out there. A nice specimen of a partial Columbite crystal from the Etta Mine, Keystone, South Dakota, USA.

Approx. specimen size: 65mm x 40mm x 17mm

Approx. specimen activity: 150 cpm

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