20060 Cassiterite, Ferberite, Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou, Hunan, China

A group of cassiterite crystals on a striated single ferberite crystal. Width 11mm. Stack of 130 images.

1529 Mottramite, Leadhills, Dumfries, Scotland