Nakauriite (incredibly rare)

Item Description

Nakauriite is an incredibly rare compound copper sulfate species, only found in about a dozen localities in the world. It should be noted that the entry on mindat.org states, "the originally reported sulphate content appears to be questionable according to several literature sources", so this might actually be a carbonate species, not a sulfate. The species was named after the type locality, the Nakauri Mine in Aichi Prefecture, Japan. This piece is from that locality, and features attractive rich sky-blue colored micro acicular needles of Nakauriite sitting on a matrix containing dark green Serpentine. The piece is best seen under the microscope, and we've taken some micro photos to better illustrate the material. If you collect rarities or minerals from the type locality, don't miss out on picking up this hard to find piece dating back to 1976. From the worldwide collection of David Burgess (1951-2016). David was a prolific species collector from Newington, Connecticut, and the namesake for the extremely rare cobalt arsenate species Burgessite, which he discovered. The piece comes with labels from the collection of the great rarities collector, Bill Pinch, along with another label from Joe Cilen, plus Y. Ito from Japan and a classic label from noted rare mineral dealer Joe Vajdak.