Northern Mineral Treasures
 Purple to green zoned fluorite in 18 mm interpenetrant twin, Blue Circle Quarry, Eastgate, Weardale, Co Durham. |
 Fluorite penetration twin (35 mm on edge) with galena (3 cm crystal) and calcite, 8 cm specimen, Boltsburn Mine, Co Durham. |
 Fluorite twin, 65 mm, hexoctahedral and shallow tetrahexahedral faces are seen. Boltsburn Mine, Weardale, Co Durham. |
 12 mm blue fluorite on 8 cm hematite matrix, from the Florence Mine, Cumbria. |
 A fine Victorian 45 mm calcite heart-shaped twin, Egremont, Cumbria. Ex Chas. W. Velte jr (1914-1987). |
 Baryte with phantoms, 11.6 cm tall, Dalmellington Mine, Frizington, Cumbria. ex David I. Green collection. |
 Calcite, 42 mm, Wetgrooves Mine, Aysgarth, Wensleydale, North Yorkshire. |
 Linarite crystals to 16 mm with cerussite in 29 mm group. Caldbeck Fells. ex Carlton Davis (1920-2003) collection. |
 Campylite crystals to 1 cm on manganese oxide matrix. Drygill Mine, Caldbeck Fells. |
click on thumbnails for full image