Mid Cornwall Minerals
 Mid Cornwall Minerals          

Cornish Mineral Sales

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.



 Chalcopyrite, Fowey Consols. Cornwall. 

A  very rich ore specimen of chalcopyrite from the famous Fowey Consols Mine.

A large bright specimen at 140 mm x 80 mm x 45 mm.

Very small areas of green malachite on it's base.


Price. £25.00. Postage UK £4.10 tracked .


Contact: info@midcornwallminerals.co.uk



Wheal Gorland. Olivenite and Clinoclase.

Olivenite and Clinoclase.  Collected by Dave Smith in the 1970's before the dumps were removed and from his collection.

Crystals of both minerals throughout the matrix.

Specimen size is: 65 mm x 50 mm x 38 mm.

Price £ 70.00. Postage tracked UK £ 4.10. 

Contact: info@midcornwallminerals.co.uk



Chalcedony. Penlee Quarry. Cornwall.

A  superb specimen with a great colour, collected from Penlee Quarry in the 1970's.

50 mm x 45 mm x 12 mm.


Price£ 45.00. Postage Uk £4.10 tracked.


Contact: info@midcornwallminerals.co.uk  

Cassiterite. Wheal Prosper. Lanivet.

A perfect miniture cassiterite specimen from Wheal Prosper at Lanivet in Cornwall. Six bright undamaged crystals on the quartz coated killas matrix. 45 mm x 32 mm x 20 mm.




Contact: info@midcornwallminerals.co.uk


 Cassiterite crystals. Great Wheal Busy Cornwall.  

A  heavy  vein of cassiterite in a quartz tourmaline matrix with a vug about 35 mm wide full of small sharp black cassiterite crystals

Specimen size: 95 mm x 70 mm x 28 mm.

Price £ 45.00 Postage UK £ 4.10 tracked.








Erythrite, Rammelsburgite, Marcasite.           Kingswood Mine, Devon .

A thumbnail size specimen with a rich coating of erythrite on a matrix of rammelsburgite and marcasite, collected in the 1950's. A bit too big to add to my micromount page and just fits in a 28 mm box. It does not show any radioactivity so safe to post. 

Price £ 20.00. Postage Uk £4.10 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 £ 4.10.

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 £ 4.10. Tracked.


Contact: info@midcornwallminerals.co.uk


Rashleighite. Turquoise. Wolfram.          Bunny Mine Section of  Gunheath Pit. Cornwall.

A large cabinet specimen of Rashleighite and bright blue crystallised Turquoise with a  blade of black wolfram and minor varlamoffite.

A nice display specimen.


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

Price: £ 50.00. Postage UK £ 4.00.





Cuprite.Wheal Phoenix. Minions. Cornwall.

Rich massive cuprite in a chrysocolla coated quartz matrix.


A large specimen at 80 mm x 60 mm x 30 mm.


Price: £ 45.00. Postage UK £4.10


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 £ 4.00.






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 £4.00.


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 £4.00.


Contact: info@midcornwallminerals.co.uk




Rashleighite. Gunheath Pit. Cornwall.       Also advertised on my Slice of Cornwall page with more new slice's.

 A large, heavy and very special one off slab of crystalline rashleighite in a grey almost smoky quartz with small areas of stannite. The slab is polished on both sides and measures approximately 200 mm x 170 mm x 20 mm. The quartz seam is 80 mm wide piercing the typical Gunheath granite matrix.

Price £60.00. 

Contact: info@midcornwallminerals.co.uk




Super Iron Out / Iron Out. 

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  for £21 plus postage of £4.10. Large stock available.

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 £ 4.00.




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 £4.00.





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 £ 4.00.

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 £4.00.

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 £ 4.00.

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 £ 4.00.

Contact: info@midcornwallminerals.co.uk

Wavellite. Hingston Down Quarry.

Wavellite. Hingston Down Quarry.

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

Specimen size is: 40 mm x 38 mm x 32 mm.

Price: £ 25.00 Postage UK £4.00.

Contact: info@midcornwallminerals.co.uk

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Copyright. Peter Trebilcock