Monthly Archives May 2019

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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