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Columbite Crystal (Rio Arriba Co., NM)

$40.00 USD

Columbite crystal; slightly radioactive (< 0.5 mr/hr), from the Big Bug claim, Petacca district, Rio Arriba County, New Mexico

Thumbnail specimen - About 0.75" x 0.6" x 0.55" (19mm x 14mmx 13mm)

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