Category Nesoborates Crystal system Monoclinic | Strunz classification 6.FA.25 Space group P21/a | |
Formula
(repeating unit) Ca4MgAs2B12O22(OH)12·12H2O Crystal class Prismatic (2/m)
(same H-M symbol) | ||
Teruggite is a mineral with the chemical formula Ca4MgAs2B12O22(OH)12·12H2O. 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.
References
Teruggite Wikipedia(Text) CC BY-SA