Question : Which among the following is a copper mineral?
Option 1: Azurite
Option 2: Bauxite
Option 3: Halite
Option 4: Hematite
Correct Answer: Azurite
Solution : The correct answer is azurite .
Azurite is a copper mineral. The chemical composition of azurite, a copper carbonate hydroxide mineral, is Cu 3 (CO 3 ) 2 (OH) 2 . It is most recognised for its distinctive deep blue to violet-blue hue that it has. Though it is often less common, azurite can be found in the same geologic settings as its sister mineral, malachite.