Nipissing 404, Coleman Township, Cobalt area, Cobalt-Gowganda region, Timiskaming District, Ontario, Canada

(Co,Fe,Ni)As_2-3 and (Co,Fe,Ni)As₂

This specimen has sharp Skutterudite crystals on a botryoidal matrix composed of a mix of Ni-Co arsenides. Covering part of the Skutterudite crystals and the botryoidal mass are micro crystals of Safflorite which are quite sparkly when well lit. There is also a small patch of Annabergite (green). The specimen is in good condition with the exception of one small area where part of the Safflorite layer on the side of botryoidal mass has chipped away (not visible in photos, I found it with a loupe). Under the loupe, the Safflorite crystals are well formed.

3 x 1.9 x 2.3 cm

Sold Specimen retained as part of the Minerals Sold But Not Forgotten Galleries