Pyrite “horseshoe” with Siderite on Sphalerite

Pyrite “horseshoe” with Siderite on SphaleriteThe Eagle mine is probably best known for its pyritohedral Pyrite specimens. Here we have a gorgeous display piece featuring a predominant and highly unusual archway or horseshoe shaped group of sparkling brilliant golden color Pyrite pyritohedra which are associated with additional Pyrites and sitting amongst remarkably sharp AND lustrous crystals of jet black Sphalerite with notably SMOOTH faces hardly any striations at all on many faces are gently

"sword"-shaped crystals of Vivianite on metamorphosed Sandstone matrix

Ludlamite associated with Quartz is also incredibly rare

I am told that it originally came through the Magistretti collection in Italy

somewhat blocky monoclinic crystals which are associated with small white

This attractive thumbnail specimen hosts several sharp

A very attractive miniature sized specimen of this classic material

and not Ferberite

They are notably different than most Danburites you'll see from virtually any other world locality

They’re very sharp

Bolivian Ferberites (especially those from Tasna) are often and sadly underrated/overlooked

The color of the Brookites is a glowing golden-orange

people tend to associate Bolivia with Vivianite