1732 Cassiterite, Topaz, Royal George Mine, Avoca-Royal George mining district, Northern Midlands municipality, Tasmania December 30, 2021 Steve Australasia Australia Tasmania Dark brown cassiterite crystals and an iron-stained topaz crystal (centre top) embedded in a corroded greisen matrix. Width of view 9.5mm. Stack of 40 images. Click on the image below for a higher resolution version.
Asia China Deaccessioned Deaccessioned 30076 Cassiterite, Quartz, Wenshan, Yunnan, China April 22, 2020
Europe Germany ncat JP0176 Sellaite, Topaz, Sanidine, Emmelberg, Udersdorf, Daun, Eifel, Rhineland-Palatinate, Germany October 11, 2019