Lapis-Lazuli' is a blue coloured precious stone. It is mineral of the class

Options

A. Sodium–alumino silicate
B. Zinc cobaltate
C. Basic copper carbonate
D. Prussian blue

Answer

A

Explanation

Lapis Lazuli is a rock composed mainly of the following mineral, lazurite, hauynite sodalite, nosean, calcite, pyrite, lapis lazuli is actually sulphur containing, sodium aluminium silicate having chemical composition `3Na_2O.3Al_2.6SiO_2.2Na_2S`.