Diamond tin. Cassiterite and quartz. From Fatwork Mine, Indian Queens, Cornwall. Philip Rashleigh Collection.

Diamond tin. Cassiterite. From Wheal Trevaunance, St Agnes, Cornwall. Philip Rashleigh Collection.

Diamond tin. Cassiterite. Creegbrawse Mine, Kenwyn, Cornwall. Philip Rashleigh Collection.

Rosin tin. Cassiterite. From Wheal Trevaunance, St Agnes, Cornwall. Philip Rashleigh Collection.

Diamond tin. Cassiterite. From Great Wheal Vor, Breage, Cornwall. James Wickett Collection.

Quilted tin. Pyrite and cassiterite on quartz, arsenopyrite and chalcopyrite. From Seal Hole Mine, St Agnes, Cornwall. Philip Rashleigh Collection.

Rosin tin. Cassiterite and quartz. From Holmbush Mine, Stokeclimsland, Cornwall. James Wickett Collection.

Diamond tin. Cassiterite. From Great Wheal Fortune, Breage, Cornwall. James Wickett Collection.

Rosin tin. Cassiterite on quartz crystals. From St Agnes, Cornwall. James Wickett Collection.

Diamond tin. Cassiterite with quartz crystals. From Carn Brea Mine, Illogan, Cornwall. James Wickett Collection.

Diamond tin. Cassiterite crystals on quartz. From Polgooth Mine, St Austell, Cornwall. James Wickett Collection.

Rosin tin. Cassiterite. From West Wheal Kitty, St Agnes, Cornwall. James Wickett Collection.

Rosin tin. Cassiterite crystal. From Red Moor Mine, Stokeclimsland, Cornwall. James Wickett Collection.

Rosin tin. Cassiterite. From St Michael’s Mount, Cornwall. James Wickett Collection.

Sparable tin. Cassiterite partly replacing feldspar. From Wheal Coates, St Agnes, Cornwall.

Quilted tin. Cassiterite in quartz. From Seal Hole Mine, St Agnes, Cornwall. Philip Rashleigh Collection.

Dog tooth tin. Cassiterite, var. wood tin with feldspar. From Garth Mine, Penzance, Cornwall.

Needle tin. Cassiterite crystals with quartz. From East Pell Mine, St Agnes, Cornwall. Philip Rashleigh Collection.

Needle tin. Cassiterite and chlorite. From Wheal Prosper, Marazion, Cornwall.

Needle tin. Cassiterite. Killifreth Mine, Kenwyn, Cornwall. Philip Rashleigh Collection.

Wood tin. Cassiterite. From Cornwall. Philip Rashleigh collection.

Wood tin. Cassiterite coating quartz crystals with quartz and feldspar. From Garth Mine, Penzance, Cornwall.

Toad’s eye tin. Cassiterite with Gilbertite. From Gavrigan Mine, Indian Queens, Cornwall.

Toad’s eye, shode and wood tin. Cassiterite. From Cost is Lost Mine, Roche, Cornwall. Philip Rashleigh Collection.

Needle tin. Cassiterite. From Polgooth, St Austell, Cornwall. Philip Rashleigh Collection.

Tin-stone. Massive cassiterite. From Basset Mines, Illogan, Cornwall. James Wickett Collection.

Needle tin. Cassiterite. From Great Wheal Vor, Breage, Cornwall. James Wickett Collection.

Needle tin. Cassiterite. From Carn Brea Mine, Illogan, Cornwall. James Wickett Collection.

Needle tin. Cassiterite. From New Rosewarne Mine, Gwinear, Cornwall. James Wickett Collection.

Sparable tin. Cassiterite and quartz. From Dolcoath, Camborne, Cornwall. James Wickett Collection.

Needle tin. Tin on quartz. From Glastennan Mine, Polgooth, Cornwall. Philip Rashleigh Collection.

Needle tin. Cassiterite with quartz. From Glastennan Mine, Polgooth, Cornwall. Philip Rashleigh Collection.

Sparable tin. Cassiterite. From Dolcoath, Camborne, Cornwall. James Wickett Collection.