Very unusual azurite crystal from Milpillas Mine, Mexico. It displays a superb, completely terminated all over, tabular azurite crystal. It is lustrous with cool striations. The color ranges from a very dark blue to intense electric royal-blue. For references see the 2021 issue of The Mineralogical Record vol. 52, # 5. In very good condition – some small nicks. On acrylic base.
Fascinating!