Like the communion rail, the side altars, and the pulpit, it is made of hand-carved wood decorated with small onyx columns.
At the top of the steps is a hand-carved white wood communion rail, decorated with miniature onyx columns and topped with marble.
Onycha is a play on the word onyx which was a gem.
Its base, which features the clock's face and inner mechanical movements, is carved from solid onyx marble.
The hand is fixed to an immobile onyx base.
Her symbol is a small stylized mask of onyx.
It is a 15-tonne, tapered monument made of onyx granite, and stands 2.1 m tall.
Artificial onyx types have also been produced from common chalcedony and plain agates.
