Teruggite

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Teruggite
General
Category Nesoborates
Formula
(repeating unit)
Ca4MgAs2B12O22(OH)12·12H2O
Strunz classification 6.FA.25
Crystal system Monoclinic
Prismatic class
Identification
Crystal symmetry Monoclinic
H-M symbol: (2/m)
Space group: P 21/a

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.

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