A very fine specimen of a sliced and polished Cassiterite variety Wood Tin/Toads Eye Tin from 'stream works' in the St. Agnes area of Cornwall. The specimen displays a fine intricate lace-like habit of concentrically banded Cassiterite, with inter grown white vein Quartz. Colour banding of the Cassiterite is from a rich deep brown to light tan, and creamy. A great specimen of the Cassiterite variety Wood Tin. The specimen also has a Sir William Serjeant (1857-1930) label on the specimen.