- Miniature, 5.3 x 4.2 x 3.4 cm
- Roughton Gill, Caldbeck Fells, Cumberland, Cumbria, England
- Ex. Lindsay Greenbank
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Most old Roughten Gill pyros are richly colored green in spindles and clubs. This is a near-surface specimen, found by Lindsay Greenbank in the 1970's while digging with Richard Barstow in "Barstow's Trench" as they called it. It is, unusually, composed of short prismatic, lustrous, limey green crystals to 7 mm in length on matrix. A few are doubly terminated. Unusual color!