An elegant presentation of lustrous white analcime crystals to 11mm over black aegirine crystal from the famous Mont Saint-Hilaire, Canada. The analcime crystals are complete all over, sharp and well crystallized with porcelain faces. The elongated black aegirine blade forms the stem. For references see the 1990 issue of The Mineralogical Record vol. 21, # 4. In good condition – contacts at the aegirine ends. On acrylic base.
Cool!