Orthoclase Feldspar. From Trelavour Downs, St Dennis, Cornwall. 

Cyrilovite with dufrenite and chalcosiderite. From Gunheath Clay Pits, Carthew, Cornwall. Maurice Grigg collection. 

Iron stained quartz crystals. From Trethosa Clay Pit, St Stephen in Brannel, Cornwall.

Cassiterite on quartz. From Beam Mine at Goonbarrow China Clay Pit, St Austell, Cornwall. Richard Barstow collection.

Danalite on dolerite. From Botallack Mine, St Just, Cornwall. 

Lollingite with quartz. From Penlee Quarry, Penzance, Cornwall. Richard Barstow collection. 

Smoky quartz. From Treviscoe Pit, St Stephen in Brannel, Cornwall.

Lollingite in granite. From Tremearne Cliff, Tremearne, Breage, Cornwall. Richard Barstow collection.

Axinite. From Trewellard Mine, St Just, Cornwall.

Carbonate-fluorapatite with chlorite on quartz. From Levant Mine, St Just in Penwith, Cornwall. Richard Barstow collection. 

Lollingite in granite. From Tremearne Cliff, Tremearne, Breage, Cornwall. Richard Barstow collection. 

Childrenite on goethite. From Crinnis Mine, St Austell, Cornwall. Richard Barstow collection. 

Danalite on dolerite. From Botallack Mine, St Just, Cornwall. 

Allophane. From Hawk’s Wood Mine, North Hill, Cornwall. 

Datolite. From Park Bean Cove, Mullion, Cornwall. Arthur Russell collection.