Mid Cornwall Minerals
 Mid Cornwall Minerals          

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.

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

Linarite and Malachite.                                    Cannington Park, Somerset.

A bright specimen of linarite and malachite from the late Bill Herring collection and with his hand written label.

Specimen size:55 mm x 35 mm x 30 mm.

Price £ 30.00 to include free tracked UK postage.

 

Contact:info@midcornwallminerals.co.uk

Cassiterite. Golden Dagger Mine.                      Dartmoor Devon.

A very rich specimen of reddish coloured cassiterite in a quart tourmaline matrix, part of an old Devon collection I am disposing of.

Specimen size: 60mm x 45mm x 25mm.

Price: £ 45.00 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.

Sold

 

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

 

Pseudomorphs of quartz after baryte and quartz on fluorite.                                              Wheal Mary Ann, Menheniot.

 A very large and heavy cabinet specimen  with

pseudomorphs of quartz after baryte and quartz on fluorite, the largest pseudomorph is over 50 mm in width  Specimen measureing 95 mm x 74 mm x 60 mm. The largest partial fluorite cube is about50 mm x 50 mm.

Price £  75.00 to include free tracked delivery to UK.

 

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 

Tetrahedrite. Herodsfoot Mine.

A solid specimen of tetrahedrite with a fine  crystalline quartz  on the base and the typical chacopyrite coating on most of the crystals.

Specimen size: 70 mm x 45 mm x 20 mm and comes with it's old collectors label.

Price: £ 75.00 to include free tracked UK Postage.

 

Contact : info@midcornwallminerals.co.uk    Reserved DF

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

Fluorite on Quartz.                                            Wheal Mary Ann, Cornwall.

A hand size specimen of blue fluorite in quartz collected over 25 years ago and from my personal collection which I am now disposing of.

Specimen size: 100 mm x 70 mm x 60 mm.

Price: £ 45.00 to include free tracked UK postage .

 

Contact. info@midcornwallminerals.co.uk

Wet Grooves Mine. Caperby-cum-Thoresby.  North Yorkshire. 

An old time collection specimen from Wet Grooves, the largest perfect crystal is 48 mm high on a solid baryte matrix with several minor nibbled crystals throughout.

Overall size> 80 mm x 40 mm x 50 mm.

Price: £ 75.00 to include free tracked UK postage.

 

Contact:  info@midcornwallminerals.co.uk

 

Sold

 

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

Bornite and Pyrite. Botallack Mine.                   St Just Cornwall. Ex D Jenkin collection.

A heavy ore specimen of bornite and pyrite from Botallack mine, an old time specimen from the late Donald Jenkin collection..

Specimen size : 60mm x 40mm x 32mm.

Price: £ 45.00 to include free tracked UK postage.

Contact:info@midcornwallminerals.co.uk

Reserved

Zippeite, Pitchblende.                                            Wheal Bray, Altarnun, Cornwall, 

Blades of zippeite showing in the vugs of this pitchblende rich matrix with  zippeite in a 12 mm wide seam through the matrix, the full specimen is shown in the lower photo.

Collection only on this item 

A very rare location specimen that comes with an old "Mayes Minerals" label.

Price. £ 40,00 collection only.

 

Contact: info@midcornwallminerals.co.uk

 

Reserved

Sphalerite crystals. Silverbrook Mine.              Ilsington, Devon.   

A small specimen showing very sharp sphalerite crystals in a quartz vug about28 mm long, the full specimen is about 40 mm x 28 mm x30 mm. 

as shown below.

Price: £ 30.00. free UK tracked postage.

 

Contact:  info@midcornwallminerals.co.uk

 

Sold

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

Cassiterite. Pendarves, Tryphena, Level 3.

A very rich and heavy specimen of cassiterite collected from level three of the Tryphena lode, this has been marked on the specimen by a mine geologist and weighs almost 600 grams. Size is:82 mm x 60 mm x 54 mm.

 

Price £ 48.00.  Free postage to UK

 

Contact: info@midcornwallminerals.co.uk

Reserved  

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

 

Quartz, Hematite and Calcite.                             Levant Mine. Cornwall. 

A  hand size quartz cluster with a hematite coating.  Specimen size: 95 mm x 50 mm x 50.

The largest quartz crystal is about 35 mm with bright undamaged paper calcite on them. 

Price £ 45.00. Postage 4.50 UK.

Contact:info@midcornwallminerals.co.uk

 

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Copyright. Peter Trebilcock