- Beryl (Var: Aquamarine), Schorl, Feldspar Group
- Small Cabinet, 8.4 x 5.6 x 5.3 cm
- Erongo Mountain, Usakos and Omaruru Districts, Erongo Region, Namibia
A transparent, doubly-terminated, 3.5-cm aquamarine (along with some smaller ones) is intergrown with a large, doubly-terminated crystal of schorl tourmaline (with a fibrous termination at one end). The light-colored mineral is feldspar, which has formed an unusually sharp 4 cm crystal in diagonal growth, right next to the large aqua. Intricate and aesthetic! Ex. Charlie Key Collection.