ncat VHD10, Duftite, Dioptase, Tsumeb Mine, Tsumeb, Namibia November 17, 2019 Steve Africa Namibia Ex Roger Colling Collection
California North and Central Americas United States 5597 Dioptase, Blue Bell Mine (Blue Bell claims; Hard Luck Mine; Hard Luck claims; Atkinson), Zzyzx (Fort Soda; Soda; Soda Springs; Zzyzx Mineral Spring Resort), Soda Mts, Silver Lake District, San Bernardino Co., California, USA October 5, 2019
New Mexico North and Central Americas United States 4959 Mimetite, Dioptase, Independence lode, Victorio District, Luna Co., New Mexico, USA October 5, 2019
Cumbria England United Kingdom ncat M2973 Duftite, Sandbeds Mine, Caldbeck Fells, Cumbria, England October 15, 2019
