Marshite pseudomorph after Cuprite Rubtsovskoe Mine, Rudnyi Altai, Altaiskii Krai, Western-Siberian Region, Russia 1.6cm x 1.44cm x 1.41cm

Description/Interesting Notes: A rare example of marshite after cuprite from Russia!!! This specimen consists of a single octahedral crystal that has been completely replaced by marshite!!! This specimen was the largest such example of this rare pseudomorph we have seen!!! This specimen still retains the well-defined octahedral habit of the original cuprite crystal and one can see that there is some minute residual cuprite var. chalcotrichite in its core, which gives it a slightly reddish hue!!! It is my understanding that these unusual pseudomorphs came from one small area of the find and no more have been seen since!!! Very unusual rare material indeed!!! The pics hardly do it justice!!! Good luck and be sure to check out my other exciting mineral auctions on ebay!!! STAY TUNED!!! MORE AUCTIONS WILL BE ADDED MONDAY NIGHT FOR A SPECIAL 3-DAY AUCTION, ENDING THURSDAY FEBRUARY 24th!!! **We have just returned from the annual Gem & Mineral Show in Tucson, Arizona!!! Be sure to stay tuned as we will be listing our exciting acquisitions throughout the next coming weeks!!!***

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