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Covellite, Butte District, Montana, Mined c. 1960s, Eric Petersen Collection, Miniature 2.0 x 2.5 x 4.7 cm, $25. Online 7/10. SOLD.


  • $ 2500

Iridescent blue sheaf-like group of curved covellite. Obvious crystal faces and terminations make this a nice miniature from this famous ore body in Montana. Mined c. 1960s. Great condition. Eric Petersen Collection.