Archives for azurite

Azurite the Stunning Blue Gemstone

Azurite is one of the most intensely colored blue gemstones in the mineral kingdom, and has been renowned since antiquity. It is a carbonate mineral with a rather complex chemical formula, and is closely related to another mineral, malachite (combinations of both azurite and malachite are called azurite-malachite). In fact, azurite weathers into malachite during a process which changes its carbonate to hydroxide ratio from 1:1 to 1:2.
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