A top quality thumbnail specimen of olivenite from from Milpillas Mine, Mexico. It comes from a recent find and these are considered among the best for the species. From the collection of Siegbert Zecha, Germany with a label. It displays a cluster of sharp and well formed olivenite blades. They are very brilliant and extremely lustrous. The color is a very dark green, almost black. It shows attractively on both sides. For references see the 2021 issue of The Mineralogical Record vol. 52, # 5. In very good condition – some contacts. On acrylic base.
Killer olivenite!