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

 (A) Sodium alumino silicate 

(B) Zinc-cobaltate 

(C) Basic copper carbonate 

 (D) Prussian blue 

1 Answer

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Best answer

Correct option (A) Sodium alumino silicate

Explanation: 

'Lapis Lazuli' is the aluminium silicate present in the earth rocks as blue stone. 

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