Several nice purple-gray dipyramidal Scheelite crystals to over 1cm set in tan Dolomite crystal matrix, the Scheelite crystals fluoresce blue-white under SW UV light. Nice piece!
This specimen comes with a label from the Abe Rosenzweig Collection, a well known collector, dealer, and teacher and the Oberlin, Ohio address dates it between 1970 and 1977, so it's more vintage than antique.
Fluorescent
Scheelite
Formula
CaWO4
Crystal System
Tetragonal
Crystal Habit
Massive - Granular, Disseminated, Columnar
Cleavage
Distinct, None, None
Luster
Vitreous (Glassy)
Color
colorless, white, pale yellow, brownish yellow, reddish yellow