Gypsum var. Selenite crystal cluster from Boldut Mine, Cavnic, Maramureș County, Romania. An impressive Selenite crystal cluster, the transparent gypsum variety, rises dramatically from matrix at the legendary Boldut Mine, Cavnic, Maramureș County, Romania. The crystal exhibits classic prismatic habit with diamond-shaped terminations, showcasing exceptional clarity and gemmy translucency that captures light beautifully. Boldut Mine produced some of Europe's finest selenite specimens during its active period, prized for their size and purity from the unique hydrothermal environment. This large, well-formed crystal represents a rare opportunity to acquire showcase-quality Romanian gypsum. The Boldut Mine in Maramureș County, Romania has not been operating since 2008, when all mines in the area were closed, the adits were sealed, and external infrastructure was demolished or is in the process of demolition.