Fluorite (gemmy cubes) with Arsenopyrite and Chalcopyrite (ex Dr. Stephen Smale Collection)

Item Description

Here we have a very nice aesthetic display specimen featuring a group of sharp, lustrous, gemmy cubes of purple and green bi-colored Fluorite measuring up to 2.0 cm on edge which are flaring off the end of a matrix of metallic, silvery colored "cockscomb" crystals of Arsenopyrite and sharp, lustrous, brass colored twinned crystals of Chalcopyrite. Minor flattened "blades" of white Calcite and a few Quartz prisms can be seen on the piece as well. There are a couple small nicks on the Fluorite, so it's not 100% pristine, but it's still really showy and this association with the two sulfide species is not terribly common in my experience. Valued at $950. Ex Dr. Stephen Smale Collection. Along with amassing one of the finest private mineral collections in the world, Steve is a renowned mathematician. His accomplishments include being awarded the Fields Medal in 1966 along with being the awarded the Wolf Prize in mathematics in 2007. You can read Steve's bio on the Mineralogical Record website ( https://mineralogicalrecord.com/labels.asp?colid=671&page=1 ) or on Wikipedia.