Tabular Celestite Clay Center, Ohio

Celestite has the same structure as Barite (BaSO4), and forms very similar crystals. Celestite also forms with other colorful minerals, making very nice combinations. Blue Celestite with bright yellow sulfur is one of the most famous colorful combinations of minerals. The ideal composition of celestite is: SrO 56.42 % SO3 43.58 %. The blue color of celestite has been attributed to the presence of minute amounts of gold. This specimen from the Clay center Area of Ohio is a translucent white, tabular variety.