Black Mesa Coal Mine, Black Mesa, Navajo County, Arizona, USA
Collected by Sebastian Tauber in October 2015 during visit to the Mine. Raúl Jorge Tauber Larry´s collection.
Wood Opal ("Opalized wood-coal"). Collected by Sebastian Tauber in October 2015 during visit to the Mine. Raúl Jorge Tauber Larry´s collection.
Photo taken by Sebastian Tauber in October 2015 during visit to the site.