Teruggite
# Teruggite

Teruggite is a mineral with the chemical formula $Ca_4MgAs_2B_{12}O_{22}(OH)_{12}·12H_2O.$ It is colorless. Its crystals are monoclinic prismatic. It is transparent. It is not radioactive. It has vitreous luster. Teruggite is rated 2.5 on the Mohs Scale of hardness.

