Berthierite - Herja Mine, Romania - 4.2 cm x 8.5 cm
Mineral: Berthierite
Locality: Herja Mine, Chiuzbaia, Baia Sprie, Maramures, Romania
Dimensions: 4.2 cm x 8.5 cm

Description: Compact mass of acicular blue-black berthierite crystals displaying typical iridescent surface.