Lovely competition level thumbnail of an ultimate Tsumeb rarity! This specimen is a large and full thumbnail consisting of numerous, 2 mm crystals of unusually lemon-yellow tsumcorite arranged in radial sprays. All the crystals have a sharp distinct form and excellent luster. Large crystals for the species, too! They range from translucent to gemmy at the tips, and their slender, tapering habit is quite attractive. This is very aesthetic thumbnail, and just blew me away when I saw it out of an old collection for sale.