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.


Minerals Also Purchased.


The time has now come for me to specialise in one area of my  mineral collecting hobby with the focus on minerals from the Mid Cornwall and I will always purchase good quality  specimens from this area especially those from the clay country.



Torbernite crystals. South Terras Mine.            St Stephens. Cornwall.          

A large  stunning specimen of torbernite crystals on a killas and quartz matrix that comes with it's  old hand written label from the late Bill Herring collection, one of many U minerals that I have decided to dispose of from my collection.

This is obviously a hot specimen so only for sale for collection only, no exceptions .

The specimen size is 120 mm x 90 mm x 40 mm and has crystals on both sides, probably one of the very best available.


Price : £50.00 collection from St Austell in Cornwall.




Contact: info@midcornwallminerals.co.uk


Cassiterite. East Providence mine, St Ives,      Cornwall.

A very heavy rich specimen of cassiterite in a quartz matrix, collected in the 1990's by the late Charles Smith Geevors Geologist and a duplicate to the one in my collection.

His label states: Providence North Lode, East Providence mine.

Specimen is 100 mm x 75 mm x 35 mm and is highly polished on one face, the reverse is as collected. 


Price £ 60.00. postage UK £ 4.69.



Contact:  info@midcornwallminerals.co.uk.

 Jamesonite, Port Quinn Cliff Lode, Cornwall.

A very large specimen, 130 mm x 80 mm x 40 mm, of rich almost solid jamesonite collected many years ago from the Port Quinn  cliff exposure which is no longer allowed today .


Sold Best offer accepted






Quartz crystals, Pyrite.  Nangiles Mine .          Cornwall .

A cluster of stubby quartz crystals coated in fine bright stable pyrite crystals with a few larger cubic crystals sitting between the quartz crystals

Specimen size is 115 mm x 70 mm x 60 mm 

The largest quartz crystal is about 40 mm.


Price,£ 45.00. Postage UK £4.69.


Contact: info@midcornwallminerals.co.uk

Cassiterite. Hangmans Pit. Dartmoor.         Devon.

A  rare location cassiterite specimen in quartz that has been cut and polished on one face, the folklore story of how the area got its name is sad but interesting and can be found on line.

Specimen size is: 140 mm x 55 mm x20 mm at it's thickest point.

Price: £ 45.00. Postage UK £ 4.69.



Contact: info@midcornwallminerals.co.uk

Wollastonite. Meldon BR Quarry. Devon.

A large clean specimen of Wollastonite collected from the British Rail quarry at Meldon in Devon.

Specimen size is: 120 mm x 60 mm x 28 mm.


Price £ 45.00. Postage UK  £4.95.


Contact:   info@midcornwallminerals.co.uk



Siderite xxls, Par Consols, C ornwall.

An iron stained quartz matrix with a 35 mm vug of small quartz crystals with siderite crystals to about 4 mm. Collected during a housing development  many years ago and now built over. 

Specimen size is 70 mm x 55 mm x 50 mm.


Price £ 30,00. Postage UK £4.69.






Cassiterite, Penpell Alluvial Terrace,             Lanlivery, Cornwall.

A rare location specimen collected over ten years ago while maintaining waterways as part of my job.

Bright areas of cassiterite in  a vuggy white quartz on the top surface of the specimen, the vuggy iron stained  matrix also shows areas of fine cassiterite.


Specimen size is: 62 mm x 50 mm x 50 mm.


Price £ 45.00. Postage UK £ 4.45.


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.  Tracked postage UK £ 4.25.


Contact: info@midcornwallminerals.co.uk  

Cassiterite, Wheal Grambler.

A large cut and polished slice showing rich cassiterite in a minor iron stained quartz matrix. One of the best   that I cut from a large surface stone collected many years ago.

Specimen size : 155 mm x 85 mm x 9 mm. 

Price: £ 45.00. Postage UK £ 4.45


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. Postage UK £ 4.45.

Contact.  info@midcornwallminerals.co.uk


Wood Olivenite.                                            Wheal Gorland, St Day, Cornwall.       

A  superb old time miniture, 38 x 30 x 20 mm of bright yellowish wood olivenite on a quartz matrix.


Price: £ 40.00. Postage UK £4.50.


Contact: info@midcornwallminerals.co.uk



Cornish Turquoise, Gunheath Pit 1980,s.

Turquoise on a grey quartz matrix.The last two remaining specimens from the 1980's.


Specimen  (1) left. Size 70 mm x 60 mm x 20 mm.


Specimen  (2) right. Size 65 mm x 55 mm x 25 mm.





Contact.   info@midcornwallminerals.co.uk 



Arthurite. Hingston Down Consols. Cornwall. Large Cabinet Specimen  

A large  size, 90 mm x 70 mm x 50 mm, specimen of Arthurite from Hingston Down Consols. The quartz coating of the granite matrix hosts a full length vug of bright green arthurite crystals.


£ 45.00  Free tracked  postage  to UK  mainland 


Contact: info@midcornwallminerals.co.uk




 Millclose Lead Ingot. Derbyshire.

A small commemerative lead ingot that was produced in the 1980's on the site of the Millclose smelter to mark the  50th anniversary of the drowning of the mine in the 1930's.

Complete with it's printed document. 

75 mm x 20 mm x 10 mm.




Contact:  info@midcornwallminerals.co.uk



A small but rare specimen with a couple of labels, one showing it to be a 19th century specimen.

Size approximately. 60mm x 40 mm x 30 mm.

Bright botryoidal areas of goethite on a goethite and hematite matrix.

Price £ 35.00.Postage UK £4.50. Worldwide POA.


Contact: info@midcornwallminerals.co.uk




Pyromorphite. Wheal Mary Ann.

Pyromorphite on a matrix of quartz and baryte with a dusting of black manganese oxide. Green to yellow pyromorphite crystals in numerous vugs, collected about 10 years ago while digging out the "Wulfenite Tunnel".

Specimen size is: 105 mm x 70 mm x 40 mm.

Price £35.00. Postage UK £ 4.50.




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.



Pyromorphite: Bay Vein. Wanlockhead.

A specimen of bright green pyromorphite on a gozzany quartz matrix from the Bay Vein Wanlockhead.

Specimen size: 80 mm x 40 mm x 35 mm.


Price.£ 30.00. Postage UK £ 4.50.



Cassiterite. Simms Lode, Geevor Mine

A rich specimen showing black micro crystals in a hematite matrix.

85 mm x 50 mm x 36 mm.


Price. £25.00. Postage £4.50 UK.


Contact: info@midcornwallminerals.co.uk


 Cassiterite crystals. Great Wheal Busy Cornwall.  

Cassiterite crystals in a quartz tourmaline matrix 

Specimen size: 80 mm x 60 mm x 30 mm.


Price £ 35.00 Postage UK £ 4.20 tracked.






Childrenite crystals.                                   George and Charlotte Mine. Devon 

 Sharp honey coloured crystals in the vug and along the front edge of the killas matrix.


Specimen size is: 80 mm x 45 mm 30 mm.


Price £ 35.00. Postage UK £ 4.20. Tracked.


Contact: info@midcornwallminerals.co.uk


Pseudomorphs. Quartz after Barite.              Gravel Hill Mine. Cornwall.

Quartz after Barite pseudomorphs.

A very clean and pretty Cornish classic.


Specimen size is: 75 mm x 40 mm x 35 mm.


Price: £40.00. Postage UK £ 4.20.






Torbernite. Wheal Basset. Cornwall.

Rich coating of small square torbernite/ meta torbernite crystals on three faces of this specimen.


Specimen size: 70 mm x 40 mm x 40 mm.


Price:£ 30.00. Collection only. 


Contact: info@midcornwallminerals.co.uk




Super Iron Out / Iron Out.                                    Now back in stock . Limited supply.           

I am always asked what I use for cleaning iron stains from minerals and the safe answer is Iron Out or what used to be called Super Iron Out.

The fomula is identical and just an advertising decision by the manufacturers.

Unfortunately due to the huge increases in courier and customs prices I have had to increase my price so this may be the last batch that I import.

I can supply the 28oz bottles in the UK  for £28.00 including delivery.

I use a weak solution 1 table spoon to 1 litre of water and buffer with sodium bicarbonate to bring the ph to about 7.

As always test on a waste piece first.


Contact: info@midcornwallminerals.co.uk

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Copyright. Peter Trebilcock