Perfect velvety Malachite atop Dioptase pic.twitter.com/lDSxLWkZks

— StockShaman ⚒ #PeakCopper AKA Greg Shafransky 🍌 (@StockShaman) 3 de junio de 2024

Perfect #Dioptase crystals sitting on #Calcite matrix from Tsumeb, Namibia.
Size: 6 x 4 cm; Anton Watzl collection; Albert Russ photo#MinCup #MinCup23 #minerals pic.twitter.com/Ph7ilTDGwh

— MineralExpert.org (@mexporg) 19 de septiembre de 2023