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Tag «malachite minerals»

Copper minerals

Copper minerals are a group of minerals, which contain the copper element in their chemical composition. Here are some important copper minerals; (1). Azurite: Cu3(CO3)2(OH)2 Physical Properties: Crystal System: monoclinic Cleavage: Perfect prismatic cleavage Hardness: 3.5 – 4. Specific Gravity: 3.77 Lustre: Vitreous Colour: Azure-blue Streak: pale-blue Habit: Crystalline. Also in radiating groups or massive. …