- Metal Specimens, Minerals of the World, Uncategorized
A top rare Carrollite metal specimen to add to your collection. Stunning bright crystal surfaces with sharp edges. Great size on a Calcite matrix with associated mineral like golden and rainbow Chalcopyrite and others. A well formed large, Octahedral Carrollite crystal is perched prominently on the matrix of this specimen. Check out the video of this specimen on this page.
9.9cm x 6.1cm x 4.3cm, 308g.
Crystal 14.5mm x 16mm.
D.R. Congo, Africa.
Carrollite was discovered in Carroll County, Maryland, and recognized as a mineral species in 1852. It is named for Carroll County. Carrollite is collected for its mineralogical rarity, rarity of sizeable crystals, unusual chemical composition as one of the relatively few cobalt-bearing minerals, high degree of cubic-crystal development, and associations in composite specimens with such minerals as quartz and calcite.
copper cobalt sulfide