Stibnite Sphalerite let alone attractive contrasting white

let alone attractive contrasting white Quartz like this one

rather lustrous and SMOOTH Spinel-twinned crystals of jet-black Sphalerite are intergrown with very minor Siderite “discs” to create this large thumbnail sized display specimen

and while the main Brookites are undamaged

The "cogwheels" feature dozens of discreet

Rarely do you see specimens this size with such great crystallization as this one

Stibnite Sphalerite let alone attractive contrasting whiteThis specimen comprises several highly lustrous, sharp, metallic silvery sword shaped crystals of Stibnite forming a very aesthetic crystal spray. There are also a few classic bent crystals on the piece as well, which is one of my favorite phenomena in the mineral world. Good shape overall, despite a tiny bit of roughness. A great classic Bolivian Stibnite specimen. This piece came out in the early 1980s when there was a large find of some superb