Mid Cornwall Minerals
 Mid Cornwall Minerals          

Cornish and British Minerals

I have been field collecting  Cornish minerals for over forty 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.



Native Copper. Pendarves Mine. Cornwall.                  

A thin specimen of sheet native copper collected from Harriet Lode and free of matrix.

Specimen size. 45 mm x 40 mm.


 Price £30.00. Postage UK 4.20


Contact: info@midcornwallminerals.co.uk 


Wood Tin. Polished Section. Trevaunance. 

A small, 45 mm x 40 mm specimen of very pretty wood tin, cut and polished from a cassiterite beach cobble.

Polished on one face and left natural on the reverse .


Price £25.00. Postage UK £ 4.20.



Rashleighite- Turquoise. Gunheath Pit.

A specimen of typical grey quartz with a mix of turquoise and rashleighite. A good  specimen that stands and displays  well.

A large specimen. 90 mm x 80 mm x 40 mm.


Price £ 40.00. Postage UK £4.20 .


Contact:  info@midcornwallminerals.co.uk

Cassiterite. New Fowey Consols Cornwall

A  large cut and polished on both sides slice from this little known mine which is a mile north of it famous neighbour Fowey Consols.

A  rare one off  specimen of very rich cassiterite in a pink feldspar  brecciated granite, the numerous vugs contain sparkling small sparable cassiterite crystals.

Specimen size: 130 mm x 85 mm x 10 mm.


Price £60.00 postage UK £4.20. Worldwide POA. 


Contact; info@midcornwallminerals.co.uk 



Cassiterite. Harriet Shaft. Dolcoath Mine.

A rich cassiterite lode specimen in a quartz chlorite matrix, collected from Harriets shaft at Dolcoath Mine by the Geevor Mine geologist and has his painted on life saver data attached.

Specimen size : 95 mm x 80 mm x 30 mm.

Price: £55.00. Postage UK £ 4.20.





Goethite. Grylls Bunnies. Botallack 19th C

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 £4.20. Worldwide POA.


Contact: info@midcornwallminerals.co.uk




 Cassiterite. No 007  var:  wood / toads eye tin. New Fowey Consols. Lanlivery. 

An exceptional specimen or wood/toads eye tin in a white quartz matrix, one of the best we have ever collected from the material on our site.  Rich areas throughout the matrix to over 25 mm wide with small bright areas of native bismuth and chalcopyrite. 

Stunning under a lens.

Specimen size: 60 mm x 50 mm x 45 mm


Price £ 65.00. Postage UK £4.20.



Goethite, Limonite, Polished Slice.                  Restormel Royal Iron Mine.

A polished on one side slice of Goethite, Limonite and Hematite in a quart matrix, a colourful display specimen.

Specimen size:125 mm x 100 mm x 10 mm.


Price: £ 30.00. Postage UK £ 4.20.

Goethite.var. Wood iron.                                       Bosorne and Bollowal  Mine. St Just.

An old time specimen of hard quartz with a 12 mm seam of Goethite through the centre forming the variety wood iron on this face.  

Specimen size: 90 mm x  70 mm x 30 mm at its thickest.


Price £ 35.00. Postage UK £ 4.20. 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 £ 4.20.




Cassiterite. Wethered Shaft. Geevor Mine.

Cassiterite. Wethered Shaft. Geevor Mine.

A  large cabinet specimen  showing a wide seam of cassiterite to 30 mm wide through the quartz and quarzt tourmaline breccia.

The specimen is very heavy, 112 mm x 85 mm and 30 mm thick at its widest point. This face has been cut and polished and the reverse is natural, It sits and stands well on its own.

Price £ 45.00. Postage UK £4.20. 





Native Copper and Cuprite.                                  Geevor Mine, Cornwall

A  pretty specimen of small native copper crystals with a coating of  small bright cuprite crystals on them. This came from the late Charles Smith, Geevors Geologist and kept in the dark for over 40 years, a little sparkler

Price: £ 45.00.Postage Uk £ 4.20.


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 4.20 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 £ 4.20.



Clinoclase, Olivenite, Malachite.                          Wheal Gorland.

A small but stunning old time specimen from the Wheal Gorland Mine, collected by Dave Smith in the 1970's before the tips were removed.

Specimen size is 40 x 35 x 25 mm.


Price: £58.00. Postage Uk 4.20.


Contact: info@midcornwallminerals.co.uk  


Linarite and Malachite.                                        Cannington Park, Somerset.

A pretty and rich specimen showing sharp crystals in the vugs, and a linarite coating on the base superb under magnification.

Specimen size is: 50 mm x 40 mm x 30 mm.


Price £ 40.00. Postage UK £4.20.



Polianite and Pyrolusite.                                      Fullabrook Mine. Braunton.       

 An unusual specimen from the Fullabrook Mine with a vug about 25mm wide showing bright undamaged crystals.


Price.£40.00.Postage  Uk £ 4.20.




Sphalerite, Galena, Baryte.                                  Pennerly Mine, Shropshire.

An unusual location specimen of Baryte, Sphalerite and minor galena from the Pennerly mine, collected in 2003 before most of the site was flattened and removed for hardcore.

Specimen size: 70 mm x 50 mm x 25mm.


Price £ 28.00. Postage UK £4.20




Chalcedony. Penlee Quarry. Cornwall.

Cassiterite. Simms Lode, Geevor Mine

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

65 mm x 50 mm x 35 mm.

Ex Alan Dean collection and comes with his label and one other.

Price. £25.00. Postage £4.20 UK.


Contact: info@midcornwallminerals.co.uk


 Cassiterite crystals. Great Wheal Busy Cornwall.  

Cassiterite crystals to 3mm in a quartz tourmaline matrix 

Specimen size: 55 mm x 50 mm x 35 mm.


Price £ 35.00 Postage UK £ 4.20 tracked.






Cassiterite in massive topaz.                       North Goonbarrow. SE area.                                

An unusual and rare specimen of very rich cassiterite in massive topaz. It has been sliced and polished on one face.

The reverse shows a crystal vug and it is heavy for  size.


Specimen size is 80 mm x 85  mm x 8 mm at it's thickest.

Price: £ 45.00. Postage UK only £ 4.20.

Contact: info@midcornwallminerals.co.uk 



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.






Cassiterite.  Geevor Mine. Cornwall.

Cassiterite in white quartz, collected from 16 Grenfell level N/E in February 1981.

Specimen size: 75 mm x 65 mm x 15 mm


Price: £40.00. Postage UK £4.20.


Contact:  info@midcornwallminerals.co.uk




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. Postage to UK only £4.20.


Contact: info@midcornwallminerals.co.uk




Super Iron Out / Iron Out.                              Out of stock until further notice.           

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.

I can supply the 28oz bottles in the UK .

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

Cassiterite.var Wood Tin.                            Tobban Horse. Cornwall.  

Cassiterite var Wood Tin. A small but rich and very pretty specimen which I have cut and polished to reveal the stunning wood tin. Collected on an extremely low tide in 2017.

60 mm x 25 mm x 15 mm.

Price £35.00.Postage UK £ 4.20.




Blister Copper, Chalcopyrite. St Agnes.

Blister copper: St Agnes:

Comes with an old Adam Krantz  label of Bonn dating it to between 1850- 1872.

Specimen size is 58 mm x 40 mm x 27 mm.

Price: £ 120. Postage UK £4.20.





A lot of old label Cornwall specimens to add in the next few months.


Cassiterite. Wheal Unity. St Day.

A rich old time specimen of crystalline cassiterite in a chlorite and quartz matrix.

Specimen size is 45 mm x 36 mm x 26 mm.

Price £45.00. Postage Uk £ 4.20.

Contact: info@midcornwallminerals.co.uk



Ferberite, Ferritungstite, Scheelite.            Hingston Down Quarry. 

A rich specimen in a stable quartz gozzan matrix, SW UV light shows areas of scheelite, yellow ferritungstite in the vugs between the wolfram and ferberite.

Specimen size is 75 x 35 x 35 mm.

Price £ 35.00. Postage UK £4.20.

Contact: info@midcornwallminerals.co.uk

Scheelite showing as bright blue areas under a short wave UV light.


Chalcopyrite. Fowey Consols.                    Tywardreath. Cornwall.   

A rich specimen of chalcopyrite in a quartz killas breccia, cut and polished on one face.Minor pyrite in a few places.

75 mm x 50 mm x 45 mm.

Price £ 25.00 Postage UK £ 4.20.

Contact: info@midcornwallminerals.co.uk



Bornite, Pyrite, Chalcocite.Geevor Mine.

A very rich specimen of lode material from 16 Coronation lode Geevor Mine that has been cut and highly polished on one side.

Bright cubic pyrite in the host matrix of bornite and chalcocite.

Specimen size:90 mm x 70 mm x 30 mm.

Price: £ 55.00. Postage UK £ 4.20.

Contact: info@midcornwallminerals.co.uk




Wavellite. Hingston Down Quarry.

Wavellite. Hingston Down Quarry.

Bright deep yellow sprays of wavellite coating small quartz crystals in the vug of the hard granite matrix.

Specimen size is: 70 mm x 50 mm x50 mm.

Price: £ 25.00 Postage UK £4.20.

Contact: info@midcornwallminerals.co.uk

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Copyright. Peter Trebilcock