Diopside (unusual locality specimen) (ex Brian Kosnar Collection)

Item Description

Diopside is well known from different worldwide environments, but crystals from this marble quarry in Jefferson County, Montana are certainly not common. This piece is a beautiful, group of very pale green to deep forest green prismatic crystals from the famous Boulder Batholith. The piece is crystallized on the display side with well-defined faces, and actually will pass a tiny amount of light when backlit. A great specimen for a collector of unusual locality minerals, or hard to find US specimens.