This is classic oldstyle Boltsburn material, with phantoms and deep purple color combined with huge crystal size - almost certainly pre-1860s from this famous mine. Very lustrous and translucent to transparent, this large, twinned, fluorite exhibits a fine, deep purple color. The larger crystal is multiply phantomed and color zoned. It also exhibits an intensely colored rich purple fluorescence under halogens or daylight. Contact on the back side and a little bit of edge wear make the price lower, but it is still a significant and highly displayable specimen of great impact from this classic old mine. The style and color saturation is distinctly Boltsburn. Sharp phantom lines are evident, and add great appeal when viewed as shown. Additionally, it strongly fluoresces in daylight or UV, oir even just with normal halogen lighting spectra.