Malachite after Azurite, with Azurite specimen from Milpillas Mine, Sonora, Mexico
7.5 x 4.5 x 3 cm
A rather aesthetic specimen featuring lustrous, royal blue Azurite crystals that are for the most part completely replaced by green Malachite! Referred to as Malachite after Azurite crystals – called a pseudomorph, which is a mineralogical term used to describe when one mineral replaces another atom for atom whilst retaining the original mineral’s crystal structure. Which is to say, this is a Malachite specimen that has fully replaced a cluster of Azurite crystals, though with some original Azurite crystals as well! Pseudomorphs occur more often than you’d think in the mineral world. But Malachite after Azurite is a well known and very popular one due to the color contrast of the two species. As for locality, the Milpillas mine will go down in history as one of the best Azurite and Malachite after Azurite localities in the world, if not THE best. There are many who say Tsumeb will always reign supreme, but that’s not without bias on my part. 😛 This is an exciting colorful piece for anyone! Do NOT ignore this one! Just look at the size of the crystals!