A fine example of interpenetrant twinned Fluorite crystals so typical of the North Pennine Ore Field. Very gemmy and lustrous pale yellow crystals to 1.2cm occupy the central area of the specimen, with other crystals surrounding the main group. The crystals are lightly included with tiny Pyrites. The specimen also carries minor areas of white Baryte. Probably originating from the Dowscar Level replacement deposit.