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Lapis-Lazuli' is a blue coloured preciou...

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

A

Ferrous sulphates

B

Copper sulphate

C

sodium alumino silicate

D

Zinc sulphate

Text Solution

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The correct Answer is:
C

Lapis Lazuli is a rock composed mainly of the following mineral, lazurite, haunite sodalite, nosean, cacite, pyrite, lapis lazuli is actually sulphur containing, sodium aluminium silicate having chemical composition `3Na_(2)O.3Al_(2).6SiO_(2).2Na_(2)S.`
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