4718 Kurgantaite, Mt Kurgan-tau, Inder B deposit and salt dome, Atyrau (Gur’yev), Atyrau Province (Atyrau Oblysy; Atyrau Oblast’), Kazakhstan
Type Locality. Extremely rare chloride-borate of Ca and Sr. Part of holotype. This material is very rare, scarce and presents only in old collections and is completely unaccessible for collecting now., eBay geo-trader. Jaroslaw Skupiewski