Fluorite with Siderite

Boltsburn Mine, Rookhope District, Weardale, North Pennines Orefield, County Durham  United Kingdom

Specimen size: 9.7 × 6.6 × 3.4 cm = 3.82” × 2.60” × 1.34”
Main crystal size: 2.3 × 2.3 cm = 0.91” × 0.91”