Cornish and British Minerals
I have been field collecting Cornish minerals for over fifty years with several breaks while bringing up a growing family and starting my engineering business. It is not my aim to become a fully fledged mineral dealer as there are many other things in life to occupy my time as you will see on this site.
I have been lucky enough to acquire several very old collections over the years, some of the specimens from which are of no interest to me but are never the less of very high quality, some dating back to the 19th century.
Cassiterite, Coronation Lode, Geevor Mine
An almost solid specimen of vein cassiterite up to 60mm wide running through a minor iron stained matrix, weighs almost 1 Kg of compact dense cassiterite with a few small crystals on one face.
Ex Geevor miners collection.
Specimen size:120 x 65 x 60 mm.
Price £ 65.00.to include free tracked UK delivery
Reserved MM
Contact: info@midcornwallminerals.co.uk
Rear face showing small crystals.
Cligga Mine 1970's label. Sphalerite and Chalcopyrite.
A large old time specimen of sphalerite and chalcopyrite, the 1970 life saver label shows the old name used as zinc blende and copper. An extremely rich specimen weighing over 700 grams. and comes with two other labels.
Specimen size: 90 mm x 80 mm x 65 mm.
Price £ 45.00 to include free tracked UK postage.
Contact: info@midcornwallminerals.co.uk
Magnesia Opal/Steatite/Serpentinite. 19th C. Ghostcroft Mine. Mullion, Cornwall.
An old time specimen of opal/ steatite and serpentinite from the 19th C. Trelawarren Collection which shows slickenside evidence on both sides.
Specimen size is: 120 mm x 60 mm x 38 mm.
Price £ 80:00 to include free tracked UK post.
Contact: info@midcornwallminerals.co.uk Sold
Cassiterite. Wheal Boys, St Just, Cornwall.
Fine crystalline cassiterite throughout the matrix of hard partially red stained granite. A heavy hand sized old timer that comes with a Hobbs label.
Specimen size:100 x 80 x 50 mm. 500 grams.
Price: £ 55.00 to include free UK tracked delivery.
Contact:info@midcornwallminerals.co.uk
Botryoidal Goethite, Botallack Mine. Cornwall
A fine old time specimen of botryoidal goethite from Botallack Mine in Cornwall.
Specimen size: 55 x 45 x 30 and comes with an old dealers label.
Price £ 45.00 to include free tracked UK postage.
Contact: info@midcornwallminerals.co.uk
Blue John Fluorite. Derbyshire.
A specimen of Blue John from Castleton in Derbyshire.
Specimen size 50 mm x 40 mm x 32 mm.
Comes with it's old Bill Herring label.
Price: £ 25.00 to include free tracked UK postage.
Contact: info@midcornwallminerals.co.uk
Sold
Cassiterite xxls. Wheal Cock, Cornwall.
An altered granite matrix shot through with cassiterite and several sharp crystals to about 7 mm on the quartz joint plane.
A heavy specimen that comes with it's old time dealer label.
Specimen size: 103 mm x 75 mm x 60 mm.
Price £ 55.00 to include free tracked UK postage.
Contact:info@midcornwallminerals.co.uk
Allophane. New East Wheal Russell. Devon.
Light blue allophane on the typical killas matrix, collected from the adit level in the 1980's.
Specimen size. 85mm x 50mm x 30mm.
Price: £ 30.00 to include free tracked UK postage.
Contact: info@midcornwallminerals.co.uk
Childrenite on Quartz. New East Wheal Russell. Tavistock, Devon.
A pretty specimen with many light brown double terminated childrenite on a quartz crystal coated matrix.
Superb under a lens.
Specimen size:62mm x 34mm x 30mm.
Collected from the adit level in the 1980's.
Price £30.00 to include free tracked UK postage.
Contact: info@midcornwallminerals.co.uk
Cassiterite. West Wheal Eliza, St Austell Cornwall.
A heavy specimen of fine cassiterite from West Wheal Eliza in a quartz tourmaline matrix, rare to find one with sharp crystals in the quartz vug and one of only the few that were recovered.
Specimen: 90mm x 60mm x 40mm.
Price £ 55.00 to include free tracked UK postage.
Contact: info@midcornwallminerals.co.uk
Cassiterite. Rogers shaft, Wheal Kitty/Wheal Sisters. 1980's collection.
Honey brown cassiterite in a fine grained schorlite matrix, collected in 1980 and comes with a well documented label. The base has been cut ( not by me) to show the rich brown cassiterite throughout.
Specimen. 80mm x 70mm x 45 mm and very heavy.
Price£ 75.00 to include free tracked UK postage.
Contact:info@midcornwallminerals.co.uk
Strunzite. Gravel Hill Mine, Perranporth.
A superb miniture specimen mounted in a 60 x 40 x 40 platic case.
One of the cleanest collected in the 2025 winterstorms.
Price: £ 30.00 to include free tracked UK postage.
Contact: info@midcornwallminerals.co.uk
Phosgenite, Gravel Hill Mine, Perranporth.
Small transparent phosgenite crystals in the vugs of the quartz galena matrix. Collected in the 2025 winter storms.
Price: £30. to include free tracked UK postage.
Contact: info@midcornwallminerals.co.uk
Cassiterite crystals. Cligga Mine, North contact zone. Cornwall.
A large specimen of killas matrix with bright crystals to 8mm, collected from old mens workings at the north contact area.
Specimen size is: 110mm x 85mm x45mm.
Price:£ 55.00 to include free tracked UK postage.
Reserved DW
Contact: info@midcornwallminerals.co.uk
Varlamoffite. Cligga Mine, 1963 collection.
Rich yellow varlamoffite on a granite matrix, from an old collection circa 1963.
Specimen size: 110 mm x 45 mm x 30 mm.
Price, £35.00 to include free tracked UK postage.
Contact: info@midcornwallminerals.co.uk
Quartz after Baryte pseudomorphs. Gravel Hill Mine, Perranporth, Cornwall.
Sharp undamaged pseudomorps of quartz after baryte to about 5 mm in the vug of the iron stone and limonite matrix.
Size: 75 mm x 50 mm x 30 mm.
Price: £ 65.00 to include free tracked UK postage.
Contact: info@midcornwallminerals.co.uk
Wavellite. Highdown Quarry. Richard Barstow Label.
A specimen of wavellite with a green Barstow label.
Specimen size: 60 mm x 35 mm x 30 mm.
Price£ 55.00 to include free tracked UK delivery.
Contact: info@midcornwallminerals.co.uk
Cassiterite in Breccia. Ponts Mill, Luxulyan From old Costain Pits.
A large specimen of cassiterite in an iron stained breccia matrix, self collected in the early 1980's when exposed during flooding. It has been cut and highly polished on one face and natural on the reverse.
Specimen size: 90 mm x 60 mm x 50 mm.
Price£ 55.00 to include free tracked UK delivery.
Contact: info@midcornwallminerals.co.uk
Wavellite on Turquoise and Turquoise var Rashleighite. Gunheath Pit. Cornwall
Wavellite on turquoise and turquoise var rashleighite. From an old Cornish collection with two labels. Size is approximately 70 x 30 x 20 mm.
Price £45.00 to include free UK tracked delivery.
Contact: info@midcornwallminerals.co.uk
Reserved PS.
Millclose Mine, Derbyshire. Commemorative Lead Ingot.
A small 75 mm lead ingot smelted and refined at the Millclose smelter with it's double sided information leaflet.
Price to include free tracked delivery to UK £ 35.00.
Contact:info@midcornwallminerals.co.uk
Quartz Crystal Cluster . Wheal Mary Ann, Menheniot, Cornwall.
A large plate of bright sharp quartz crystals to about 30 mm, collected from Wheal Mary Ann at Menheniot and from my own collection which I am disposing of.
Specimen size:150 mm x 90 mm x 70 mm.
Price: 45.00 to include free tracked UK Postage.
Contact: info@midcornwallminerals.co.uk
Sphalerite.Treburgett Mine. Cornwall.
A small, 55 x 30 x 14 mm, but rare location specimen from Treburgett mine, from the R Davis of Lostwithiel collection and with his typical micro label which is still legible.
Price £ 25.00. Free tracked postage to UK.
Contact: info@midcornwallminerals.co.uk
Lamellar Aragonite. St Marys Bay, Brixham, Devon.
A very rich specimen of lamellar banded aragonite 55 mm x 35 mm x 25 mm, collected about twenty years ago from St Marys Bay.
Price £ 30.00.Free postage to UK
Contact. info@midcornwallminerals.co.uk
Print 