Rich blue areas of Linarite adorn the specimen from the Penberthy Croft Mine, St. Hilary, Cornwall. Linarite forms inter grown clusters of radial micro-crystals on a ferruginous cellular Quartz Vein stone, associated with green Malachite and white Cerussite. Crystals of prismatic creamy to colourless Mimetite lines many cavities in the Quartz. A characteristic Linarite from the mine.