Löllingite as large crystals -
Megilliggar Rocks, Tremearne near Breage, Cornwall, Great Britain
 
Lenticular bright metallic silver-grey crystals up to 2 cm in size, with reddish Orthoclase in pegmatite matrix. Such large Löllingite crystals from a pegmatite occurrence are not only rare worldwide, but also represent an absolute Cornish speciality! Found in August 1982, ex Stefan Weiß collection