AZURITE CRYSTAL MEXICO 2
Top Gemmy Azurite Crystal Mexico 2 with Striated Malachite. This specimen is truly aesthetic showing great contrast in quality formations of Gem Azurite and Striated Malachite. From now closed location and this quality is becoming very hard to come by.
Azurite is a very popular mineral because of its unparalleled color, a deep blue called “azure”, hence its name. Azure is derived from the Arabic word for blue. The color is due to the presence of copper (a strong coloring agent), and the way the copper chemically combines with the carbonate groups (CO3) and hydroxyls (OH). Azurite has been used as a dye for paints and fabrics for eons. Unfortunately, at times its color is too deep and larger crystals can appear black. Small crystals and crusts show the lighter azure color well. Azurite is often associated with its colorful close cousin, malachite. Mounted on a perspex display pad.
3.0cm x 2.5cm x 1.5cm, 20g (not including perspex pad).
Milpillas Mine, Nacozari, Sonora, Mexico.
Azurite’s formula: Cu3(CO3)2(OH)2.
Malachite’s formula: Cu2(CO3)(OH)2.
Green malachite is closely associated with azurite in many ways. Not only do they frequently occur together (pictured above), they also have very similar formula. Malachite can also replace azurite, making a pseudomorph, or an exact copy of an azurite crystal, only now instead of being blue, it would be green.