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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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 Posted: Jul 16, 2013 03:53 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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Quartz, var. chalcedony. Ex Arthur Scoble collection
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Chalcedony
Pednandrea Mine, Redruth, Cornwall, England, UK
115mm across
An old tin mine, Pednandrea was already active in the early 18th century. The final period of working occurred between 1854 to 1891. The mine is known for having produced fine specimens of chalcedony |
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58363 Time(s) |
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Jul 18, 2013 15:46 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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A not to well known Cornish classic
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Vivianite
Wheal Owles, Botallack, St. Just, Cornwall, Englan, UK
Group of radiating vivianite crystals, 7mm across, in jasper. Ex Henry Ludlam (1822-1880) and Geological Museum, London, collections. The Ludlam collection was once on display in the Geological Museum, one of very few old extant collections still held in one piece and available to be seen. Now sadly incorporated into the Natural History Museum Collection and no longer on display. |
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58278 Time(s) |
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Vivianite
Wheal Owles, Botallack, St. Just, Cornwall, England, UK
label on rear |
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58252 Time(s) |
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Jul 19, 2013 04:06 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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Group of 1cm bertrandite crystals with quartz and chlorite. Ex Richard Barstow collection, exceptional for the UK.
Collected in 1978. I was collecting with Dick when we got this and lost the toss to decide which of us was going to have it! Dick Barstow died tragically young, there are a lot of memories in this rock.
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Bertrandite
Hingston Down Quarry, Gunnislake, Calstock, Cornwall, England, UK |
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58272 Time(s) |
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Ru Smith
Joined: 13 Oct 2012
Posts: 362
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| Posted: Jul 22, 2013 18:21 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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| A great specimen, Ian. Association of minerals with history and people adds hugely to their interest and this is a particularly resonant example.
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Jul 24, 2013 15:59 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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I love specimens with some history Ru, it doesn't necessarily make them better, but it does make them more interesting. This is a Talling chalcotrichite that I traded with the BM London. I have since trimmed some of the quartz matrix away
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Cuprite, var chalcotrichite
Fowey Consols, Tywardreath, St. Austell, Cornwall, England, UK
Chalcotrichite with goethite in quartz, overall specimen 70x70mm. Ex Natural History Museum collection, purchased from mineral dealer Richard Talling at a cost of £1 10s in 1864 |
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57873 Time(s) |
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Cuprite var chalcotrichite
Fowey Consols, Tywardreath, St. Austell, Cornwall, England, UK
this cavity 20x12 |
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57875 Time(s) |
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Cuprite var chalcotrichite
Fowey Consols, Tywardreath, St. Austell, Cornwall, England, UK
Talling number 2009 on side of specimen |
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57936 Time(s) |
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Cuprite var chalcotrichite
Fowey Consols, Tywardreath, St. Austell, Cornwall, England, UK
Copy of Talling Invoice showing that this specimen was purchased for the sun of £1 10s in 1864 |
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57979 Time(s) |
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Jul 25, 2013 02:57 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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A much travelled cassiterite
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Cassiterite
Great Work Mine, Breage, Cornwall, England, UK.
largest crystal 6mm.
This Cornish cassiterite was once in the Freiberg mining Academy in Saxony, Germany (its label dates it there to between 1880-1905). From Freiberg it made its way to Chile's national Museum, the Museo de Santiago.
Rescued by Skip Szenics in the late 1900s, he brought it back to New York in the USA. In 2002, he brought it down to Tucson, from whence I repatriated it back to the UK.
This is a well-travelled tin!
Located only as Cornwall on the Freiberg label, this specimen has been compared to others in the Natural History Museum Collection in London. Its matrix and composition matches those in the Russell Collection from Great Work Mine in Breage. |
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38130 Time(s) |
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| Freiberg Mining Academy label, its style dates it to between 1880-1905 |
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38104 Time(s) |
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Ru Smith
Joined: 13 Oct 2012
Posts: 362
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| Posted: Jul 26, 2013 13:51 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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£1 10s in 1864 money seems like a healthy price for that chalcotrichite. Using one of the online calculators to convert to 2013 money I got:
£115.00 using the retail price index
£891.00 using average earnings
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Ru Smith
Joined: 13 Oct 2012
Posts: 362
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| Posted: Jul 26, 2013 14:39 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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An imposing old specimen from Wheal Jane.
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Sphalerite (Fe-rich) with pyrite and quartz.
600' level, Wheal Jane, Cornwall, England, UK.
23 cm. |
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38021 Time(s) |
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Jul 30, 2013 02:57 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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A classic from Wh Hope
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Galena
Wheal Hope, Hendra Croft, Perranzabuloe, Cornwall, England, UK
Galena pseudomorphing pyromorphite, typical crystal size 5mm. Ex Arthur Scoble collection. |
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37995 Time(s) |
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Roger Warin
Joined: 23 Jan 2013
Posts: 1232
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| Posted: Jul 30, 2013 04:33 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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Very interesting and original specimen of pseudo galena.
Roger.
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Jul 31, 2013 02:53 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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A Cornish silver, not a thing of beauty, but a rare mineral from Cornwall
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Silver
Wheal Ludcott, St. Ive, Liskeard, Cornwall, England, UK
Coarse wire silver, maximum wire length 10mm, with crude calcite crystals. |
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37913 Time(s) |
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Aug 20, 2013 12:21 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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Bournonite from the original but much less well-known locality of Wheal Boys in the parish of St Endellion in Cornwall where it was associated with jamesonite, sphalerite and siderite.
First mentioned by Philip Rashleigh in 1797, it was more fully described by French crystallographer and mineralogist Jacques Louis, Comte de Bournon in 1804, after whom it was subsequently named. However, the name given by Bournon himself in 1813 was endellionite, after St Endellion, the original location.
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Bournonite
Wheal Boys, Port Isaac, St. Endellion, Cornwall, England, UK
Intergrown bournonite crystals to 4mm, with small crystals of sphalerite. Sphalerite and jamesonite crystals on rear |
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37821 Time(s) |
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37741 Time(s) |
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Jesse Fisher
Joined: 18 Mar 2009
Posts: 639
Location: San Francisco
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| Posted: Sep 20, 2013 11:21 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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Fluorite on Quartz from the East Pool Mine, Redruth. Specimen is ex American Museum of Natural History and ex Charles Bement collections.
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Fluorite on Quartz
East Pool Mine, Redruth, Cornwall
6x4x3 cm |
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37644 Time(s) |
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Ru Smith
Joined: 13 Oct 2012
Posts: 362
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| Posted: Sep 28, 2013 18:21 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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Fine old tetrahedrite.
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Tetrahedrite, chalcopyrite-coated with galena on quartz.
Herodsfoot Mine, Lanreath, Cornwall, England, UK.
5 cm specimen, tetrahedrite crystals to 2 cm on edge. |
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37535 Time(s) |
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Sep 30, 2013 11:44 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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Whilst Whs Gorland and Unity are best known for their superb and rare arsenates and phosphates, they also produced many other fine minerals. One, never common and much sought after by collectors of Cornish minerals, is mimetite.
| Description: |
Mimetite
Wheal Unity, St Day, Cornwall, England, UK
crystals to 20mm, on quartz |
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37363 Time(s) |
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