Rock crystal cluster with an unusual shape from the Swiss Alps

Pyrite crystals from Mina Ampliación A Vitoria, Navajun, Spain

Calcite crystals from a crystal pocket in Calcaire de la Sambre, Landelies, Belgium

Rock crystals from a crystal pocket in Wallis, Switzerland

Double terminated calcite and quartz crystals geode from Juchem quarry, Idar-Oberstein, Germany

Deep purple amethyst geode with calcite crystals from Juchem quarry, Idar-Oberstein, Germany