For over a century the black tourmaline crystals found at Power's Farm in Pierrepont were known as uvite. Then science caught up, and they are now recognized to be dravite tourmaline, due to the preponderance of magnesium in the chemical formula. This is a choice example of this classic material, featuring sharp crystals to 1.5" with a brilliant diamantine luster that is excellent for the locality. I collected this piece myself in 1989, and it has been in my personal collection until now.