150ct Rich Blue Azurite Cluster w/Malachite Inclusions Rough Natural Gemstone Crystal Mineral Collectible Raw Specimen - S. Africa

All our minerals and crystals are carefully measured with digital measuring instruments that provide the high accuracy of numbers/values!

• You will receive exactly this Azurite Rough Slice - 42mm x 37mm x 12mm / 1 11/16 x 1 7/16 x 1/2 Inches; 30g / 1.05 oz /150Carat (see photo, stand not included, the photos are taken under bright light, some photos are taken wet)!
• Azurite owes its name to its beautiful azure-blue color, which makes it a very popular and well-known mineral. Azurite often occurs with green Malachite, which may form green stains or specks on Azurite crystals or aggregates. The two minerals sometimes occur admixed or banded together, forming what is called "Azure-malachite" in the gem and mineral trades. A rarer Azurite mixture, known as "Bluebird", is Azurite mixed with dark red Cuprite. Azurite, "Azure-malachite", and "Bluebird".
• Azurite precipitation occurs in pore spaces, fractures, and cavities of the subsurface rock. The resulting azurite is usually massive or nodular. In rare situations, azurite is found as stalactitic and botryoidal growths. Well-formed monoclinic crystals are infrequently found. These can only occur if azurite precipitates unrestricted in a fracture or cavity and is not disrupted by later crystallization or rock movements.
• Chemical Formula: Cu3(CO3)2(OH)2; Hardness: 3.5 - 4; Color: Blue to very dark blue; Specific Gravity: 3.7 - 3.9;
• (The above information is provided solely for informational purpose. Kindly note that all stones are offered for decorative purposes only. Please, handle your stones with great care, do not grind or crumble them, do not dip or add them into your food or drink, do not use any parts of them in any elixirs, potions, lotions etc. Always make sure you wash your hands before and after working with your crystals.)