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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > ‘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

‘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

'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