“Black dolomite crystal, var teruelite, from which are found at north, outside the quarry. The crystals from this locality are perfect rhombohedra, single forms without modification of other crystalline faces, and have matte all faces. When shining, are cleavage faces. 8x7 mm size. Sample collected in August 2013. ”
Gascón Cuello Fernando - 18th November 2013