My interests lie in gem and pegmatite minerals. My role at the museum focuses on the care and management of the mineral and gem collections (approx. 185,000 specimens ) including curation, ...

The unique specimen is currently ... deep underground in a pegmatite — an igneous rock. Its chemical formula is Bi³⁺Sb⁵⁺O₄ with traces of tantalum. The rarest mineral in the world ...