Calcite with iron oxide inclusions

Pallaflat Mine, Bigrigg, West Cumberland Iron Field, former Cumberland, Cumbria  United Kingdom

Specimen size: 6.2 × 5.3 × 5.4 cm = 2.44” × 2.09” × 2.13”
Main crystal size: 1.5 × 1 cm = 0.59” × 0.39”