Fluorite

West Pastures Mine, Stanhope, Weardale, North Pennines Orefield, County Durham  United Kingdom

Specimen size: 19 × 15 × 5.5 cm = 7.48” × 5.91” × 2.17”
Main crystal size: 1.8 × 1.8 cm = 0.71” × 0.71”