Mid Cornwall Minerals
 Mid Cornwall Minerals          

Cornish Micromount- Micro Minerals  +  Various rare worldwide micromounts.

What is a Micromount Specimen.

Basically one of natures minerals with crystals so small that they need some kind of magnification to view and appreciate them to their full potential.

Many of the rarer species simply do not grow any bigger but are spectacular when viewed under a microscope.

All of our specimens are tack mounted in to a 28mm square perky box and fully labeled and can now be checked using our own on site Raman technology.


With an ever increasing  collection of new, rare and interesting micro specimens we decided to invest in our own custom built  Raman 532 Spectrometer, originally  intended for our own use but we have decided that we will be offering this as a service once a commercial licence is in place for the new software that is being developed.

Watch here for future developments..

All photo's are generic and we always pick the best available.


Postage prices UK. Items under £20.00 at Royal Mails cost price £3.90.


Items over £20.00 and up to 2KG  £ 4.90 tracked and signed for.

Wustite. Par Lead Smelter. Cornwall.

 Small tree like formations of Wustite in a hard slag matrix collected from the normally deep water area on a very low spring tide in 2020.

Price £ 5.00. Postage £3.90







Wood / Toads Eye Tin. Lanlivery, Cornwall.

A superb selection of wood/Toads eye micromounts are now available from our new 2020 find on our site. All are on a hard white quartz matrix with variations as to habit growth, circular toads eye and wood type strings.

There is also a choice  of mineral association, some with native bismuth, bismuthenite and chalcopyrite, some lucky ones have all three. You decide and I will send the very best available.


Price. £8.00 each. Postage UK £3.80 Worldwide POA.




A few more hand specimens will be available January 2021.


Sphalerite Crystals. Par Adit/Trial.

Small amber coloured sphalerite crystals in the vugs of a crystalline quartz matrix. Collected from an unnamed trial along the coastline at Par in Cornwall.


Price £ 5.00.Postage UK £3.10.


Contact: info@midcornwallminerals.co.uk

Olivenite. West Caradon Mine.

A quartz matrix with rich areas and clusters of olivenite crystals.

Price: 8.00. Postage Uk £3.10.


Contact: info@midcornwallminerals.co.uk


Connellite. New Fowey Consols.   

Tack mounted in a 28mm perky box. This is from the garden tip at New Fowey Consols which is a mile north of  the famous Fowey Consols. 


A rare location specimen.


Price £8.00. Postage UK £3.10.



Childrenite. New East Wheal Russell.

Unusual elongated childrenite crystals on slender quartz crystals.


Four specimens available.


Price: £ 4.50. Postage £ 3.10.



Covellite. Bampfylde Mine.

A quartz and iron rich matrix with bright blue covellite on malachite.


Price £5.00. Postage £3.10 UK.


Contact:  info@midcornwallminerals.co.uk



Gold : Western areas gold mine.                Witwatersrand, South Africa .                                  

Gold on quartz from the Western areas gold mine in South Africa, from the collection of the late Donald Jenkin who obtained it from K Hoskin.


This is the last  and richest specimen from the collection and a lot of gold throughout the matrix.FOV 8mm.

Approx 12 mm high, gold approx 5 mm wide.


Price £30.00. Postage £ 3.00 .



Vivianite. Par lead smelter.

Vivianite: Par lead smelter.

In numerous vugs of the lead slag matrix, collected on an exceptionally low spring tide in 2019.

You will receive the best available. 

Price:£ 5.00. Postage £ 3.10.


Contact: info@midcornwallminerals.co.uk



Wavellite: Hingston Down Quarry.

Wavellite: Hingston Down Quarry.


Three specimens available.


Snow white spheres on quartz.


Price £ 5.00 each.


Postage UK £ 3.10.



Contact: info@midcornwallminerals.co.uk

Cannonite. New Fowey Consols. Lanlivery. Cornwall.

A very rich specimen from the 2016 find and the first time it was recorded from the UK.

Clear to white cannonite crystals on a bismuth and bismuthenite rich granite matrix.

One only. £50.00.









Native Copper. Lanlivery. Cornwall.

Native Copper on a quartz matrix with light blue chrysocolla coating some of the quartz.

Collected from the Penpell alluvial terrace area.


Price. £ 4.00. Postage £3.10 for any quantity.


Contact: info@midcornwallminerals.co.uk


Erythrite. New Fowey Consols.

Erythrite, quite large spherules on a mixed sulphide matrix.

Price, £ 10.00 each . Postage £ 3.10 for any quantity.

Three rich specimens available.


Contact:   info@midcornwallminerals.co.uk 





Wood Tin. Luxulyan. Cornwall.

Single spheres and strings of cassiterite var wood tin embedded in a water clear quartz matrix. 



Price £ 3.00 each Postage UK £ 3.10

Contact: info@midcornwallminerals.co.uk



Siderite xxls. Trewavas Mine.

Unusual form and colour in this selection of siderite crystals growing in the vugs of a sulphide and quartz matrix.

From an old time geologist collection.

Choice of types; dark amber or bright almost chrome yellow.

Price each £ 3.00. Postage UK £3.10

Contact: info@midcornwallminerals.co.uk


Reserved PB



Gold. Frankfort Mine. Pilgrims rest . South Africa.

A  micro mineral specimen of Gold in Quartz.

From the Frankfort mine near Pilgrims Rest and the collection of  K Hosking.

Pin mounted in a hinge top 25 mm perky box.


Sold: Best offer accepted


Contact : info@midcornwallminerals.co.uk




Wood Olivenite.                                Hingston Down Quarry.

Wood olivenite  growing on massive olivenite with a small area of arthurite on on edge.

Price £5.00 each. Postage £ 3.10

Contact: info@midcornwallminerals.co.uk


Kettnerite, Luxulyan, Cornwall.

Platy white crystals of kettnerite on chalcopyrite coated bismuthenite crystals.

Single crystal XRD tested. FOV 5 mm.

Specimens are in a vuggy quartz bismuth matrix.

2 specimens available.



Cyrilovite. Gunheath Pit Cornwall.

 Sharp  cyrilovite crystals to about 0.5 mm in quartz vugs associated with chalcosiderite.

Price: £ 4.00 each.

Postage for any quantity £3.10


Three specimens remaining


Contact: info@midcornwallminerals.co.uk

Cuprite on Copper crystals.                     Geevor mine. Cornwall.

Stunning bright cuprite crystals growing on copper crystals from Geevor mine, these are as bright as the day they were collected in the 1980's, (the mine geologist kept them sealed in a jar of the black water which they were growing in).

All now pin mounted in perky boxes.

Price. £ 5.00. Postage Uk  £3.10.

Contact: info@midcornwallminerals.co.uk


Reserved PB

Connellite. Poldice Mine, St day.

Superb deep blue specimens of connellite with both spherical and radiating forms.

Collected from Poldice mine, St Day.  

Price£ 5.00 each.

Postage £ 3.10

Contact: info@midcornwallminerals.co.uk.



Chalcopyllite. Wheal Unity. Cornwall. 

A fresh specimen of chalcopyllite from Wheal Unity, St Day

Price £10.00. Postage Uk £3.10.


Contact:  info@midcornwallminerals.co.uk



Brochantite. Hingston Down Consols.

Brochantite on Smoky quartz crystals.

Collected from Hingston Down Consols Mine.

Price £ 4.00. Postage Uk £ 3.10


Contact: info@midcornwallminerals.co.uk


Reserved 1#EH

Pharmacosiderite.                          Hingston Down Consols ( Mine)

A rich coating of deep green pharmacosiderite crystals on a matrix of arsenopyrite and chalcopyrite.

Price £8.00. Postage Uk £ 3.10

Contact: info@midcornwallminerals.co.uk


Cassiterite, var Toads Eye.                           New Fowey Consols.

Toads eye  cassiterite in a clear quartz matrix, collected from New Fowey Consols, not to be confused with Fowey Consols it's more famous neighbour a mile to the south.

Price £5:00. Postage Uk £3.10



Bismuthinite crystals.                                    New Fowey Consols, Lanlivery.                                                                                                 

Bismuthinite crystals in the vug of the white quartz matrix.

Price: £5.00. Postage Uk £3.10

Contact: info@midcornwallminerals.co.uk


Two specimens remaining


Reserved PB



Cassiterite. var Toads Eye Tin.                    Rostowrack CCP. Cornwall. 

Cassiterite. Wood tin var; Toads eye tin.

Fresh specimens of cassiterite showing partial and complete spheres of the variety known as Toads eye tin in  honey coloured  crystalline vugs of the quart matrix.

Price £5.00. Postage UK £3.10


Reserved PB 

Beudantite. Polmear Cliff Trial.

Beudantite. Polmear Cliff trials. St Austell. Cornwall.

Very bright yellow crystals of the pseudo cubic form in the vugs of a hard quartz matrix. 3 available.

Price. £ 5.00.  Postage UK. £3.10

Contact info@midcornwallminerals.co.uk



Cassiterite and rashleighite.


Cassiterite and crystalline rashleighite.

Gunheath Pit. Cornwall.

Fine crystalline strings of cassiterite coated with botryoidal rashleighite. 2 available one sold

Price £ 5.00.

Postage UK  £ 3.10

Contact. info@midcornwallminerals.co.uk



Holmbushite.                                  Holmbush Mine Cornwall.

Holmbushite on Siderite  in a boxwork siderite matrix.

Good quality specimens.

Price: £ 5.00.

Postage £ 3.10

Contact.   info@midcornwallminerals.co.uk



Goethite Restormel Royal Iron Mine.

Bright prismatic crystals in a quartz vug.

Price £6.00.

Postage UK £3.10


Three specimens remaining.





Libethenite. East Gunnislake Mine. Cornwall.

Large deep green crystals.

Price £ 5.00.

Postage £3.10

Contact: info@midcornwallminerals.co.uk



Wood olivenite and arthurite from Hingston Down Consols mine in Cornwall.

Price: £ 5:00.

Postage UK £ 3.10 Worldwide £ 10:00.

Contact: info@midcornwallminerals.co.uk


Out of stock


Erythrite. Wherry Mine. Cornwall.

Superb erythrite spherules and sprays on a cassiterite rich chlorite matrix with micro areas of an unidentified cobalt mineral.

From material collected in the winter of 2014.

Price £ 5.00 each.

Contact: info@midcornwallminerals.co.uk




Phosgenite, Gravel Hill Mine, Perranporth.

Blocky crystals in the vugs of a Quartz Galena matrix.

Price.  £10:00.

Contact: info@midcornwallminerals.co.uk




Wavellite. Hingston Down Quarry.

White radiating crystals and spheres of wavellite on a smoky coloured quartz matrix.

Price £ 5.00.





Pyromorphite: Wheal Mary Ann. Cornwall.

10 specimens available. A choice of crystals on a white quartz or on a black manganese coating, please state which is prefered.

Price. £5.00. Postage UK £3.10

Contact: info@midcornwallminerals.co.uk


Variscite: Gunheath Pit, Hensbarrow , Cornwall.

1 specimens remaining

Price.£ 4.00. Postage UK £ 3.10

Contact: info@midcornwallminerals.co.uk




Devilline,  bright blue/green sprays of crystals on a rich sulphide matrix.

Copy of XRD test included.

Fixed in to a 28mm perky box for postal security due to there delicate nature.


Price £10.00 each. Postage to Uk £3.10, rest of the World £10:00.

Contact:   info@midcornwallminerals.co.uk


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Copyright. Peter Trebilcock