Sphalerite on Pyrite sulfasalt but the piece in general

but the piece in general is in very good shape

let alone a twinned crystal on matrix is exceedingly rare

as many of the Augelites from this mine are not terribly colorful

My father acquired this piece from his Amazonite collecting partner

Sphalerite on Pyrite sulfasalt but the piece in generalA beautiful pair of matched complex, highly modified, deep reddish black groups of Sphalerite are smartly perched atop a mound of HIGHLY lustrous, bright, metallic, golden striated Pyrite pyritohedra. No real damage to speak of on the display side, and very attractive for a smaller Gilman specimen. A beautiful toenail sized display specimen from the world famous Eagle Mine (more properly the New Jersey Zinc Eagle Mine). This mine is long defunct and