Very rich specimen formed by good size sharp crystals of fluorite, with cubic habit, and very well defined faces and edges, good transparence, intense color between purple and violet with intense zoning. This color zoning becomes very evident when the crystals are exposed to the ultraviolet light (LW), since the fluorescence also presents this zoned cubic geometry. They are accompanied by several tabular crystals of baryte on a matrix layered by small quartz crystals.
These specimens come from the town of Bergheim, known for being on the Alsace wines route. Although fluorite crystals were already known in some of the mining works of the area, these specimens come from a work done in a "domaine" (vineyard) in 2017.

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