Rare Jeremejevite specimen from the Erongo pegmatite field featuring several translucent blue crystals presented on matrix. The larger blue crystals are loose crystals from the same locality, attached with removable mineral tack for display. The matrix itself carries a very dense coverage of its own naturally grown micro-Jeremejevite crystals, clearly visible across the surface. Jeremejevite is a very rare borate mineral and Erongo is one of its most important classic localities, highly regarded by collectors. Condition: good, loose-mounted for display — clearly stated. Rare locality piece with strong visual impact.