A cool flower of gem green beryl var. emerald showing so called trapiche habit from the famous Pena Blanca Mine, Colombia. It displays clear green emerald with radial arms from the center. Some black inclusions of carbonaceous material are seen too. It shows beautifully on both sides. For references see the 2016 issue of The Mineralogical Record vol. 47, #1. In superb condition. On acrylic base.

Fascinating!