Superb Boulangerite specimen from Bottino Mine, Tuscany, Italy. It displays very dense cluster of fibrous hair like Boulangerite needles over a base. The Boulangerite has grey-black color and it is very sparkling. Id displays aesthetically on both sides. For references see the 2018 issue of The Mineralogical Record vol. 49, # 4. In superb condition. On acrylic base.

Choice piece!