ncat VHD10, Duftite, Dioptase, Tsumeb Mine, Tsumeb, Namibia November 17, 2019 Steve Africa Namibia Ex Roger Colling Collection
Arizona North and Central Americas United States 0824 Dioptase, Table Mountain, Arizona, USA September 20, 2019
Europe Germany 4702 Duftite, Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany November 16, 2018
Arizona North and Central Americas United States 8181 Willemite, Dioptase, Wulfenite, Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona October 5, 2019
Arizona North and Central Americas United States 4556 Dioptase, Price Mine, Mohave Co., Arizona, USA October 5, 2019
