Colorful Manganoan Vesuvianite from the famous Jeffrey mine, Quebec, Canada. The well terminated crystals are gemmy. They have very dark and saturated purple color. The luster is strong and the crystals are glassy. That is among the most intense colors which the mine produced. For references see the 2013 issue of The Mineralogical Record vol. 44, # 4. Some contacts. On acrylic base.
Charming!