Ca₂Mn₇Si₁₀O₂₈(OH)₂.5H₂O

This sample of inesite is displayed in the Smithsonian Museum of Natural History. Inesite is a silicate mineral with the composition Ca₂Mn₇Si₁₀O₂₈(OH)₂.5H₂O. The sample at left is about 20 cm across and is from Broken Hill, New South Wales, Australia. It is described as inesite with apophyllite.

This sample of inesite is about 7x8 cm and is from Trinity County, California.