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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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 Posted: Sep 30, 2013 12:43 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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Cornwall, famous for its tin and copper. Here are a couple of copper specimens from (very probably) perhaps it's most well-known mine - Botallack - "the mine under the sea" - from about c1804.
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Copper
Botallack Mine, St Just, Cornwall,England, UK
3x2"
Ex Col Williams - Burncoose Assay Office Collection. Williams collection number 112. Although attributed to "probably Wh Basset" by Williams, the specimen came from the Bolitho collection (the Bolithos were a well known Penzance mining family and operated the largest tin smelting house in Cornwall during the 19th century and until 1912), so the specimen is much more likely to be from one of the St. Just mines.
Specifically, the specimen is like other wire coppers from Botallack Mine and thus possibly dates to c1804 when other specimens of this type were collected. |
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37503 Time(s) |
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| Another, but much coarser, wire copper from Botallack 3x2". |
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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 15:17 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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A classic St Agnes fluorite - a "four-faced cube" - more correctly a tetrahexahedral crystal, but that doesn't sound as good! This habit was typical of Trevaunance and the neighbouring St Agnes mines. Ex University of Pennsylvania Collection.
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Fluorite
Trevaunance mine, St Agnes, Cornwall, England, UK
Crystals to 7mm |
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37488 Time(s) |
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Oct 03, 2013 11:21 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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A couple of pieces from Herodsfoot, one of the great specimen-producing mines of Cornwall. Its certainly one of my favourites!
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Herodsfoot Mine, Lanreath, Cornwall, England, UK
10mm tetrahedrite crystals coated with iridescent chalcopyrite, with associated galena and quartz. |
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37332 Time(s) |
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| Bournonite cogwheel 30mm across, on quartz. This is part of a larger specimen, and is the largest crystal. |
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37322 Time(s) |
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Ru Smith
Joined: 13 Oct 2012
Posts: 362
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| Posted: Oct 03, 2013 21:23 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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| Fine examples, Ian.
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Oct 13, 2013 08:01 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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A number of locations in Cornwall have produced nice apatites. This is one from the classic but long-abandoned and now heavily-overgrown location of Colcerrow Quarry.
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Apatite
Colcerrow Quarry, Lanlivey, Cornwall, England, UK
Crystal 13mm |
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37029 Time(s) |
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Oct 19, 2013 14:56 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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A zoned "horse-tooth" siderite from Wh Maudlin. A Cornish classic - Peter Embery, the late curator at the Natural History Museum in London reckoned that these all came from a single vug about 1820.
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Siderite and quartz
Wheal Maudlin, Lostwithiel, Cornwall, England, UK
siderite crystals to 12mm |
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36677 Time(s) |
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Leon Hupperichs
Joined: 23 Oct 2013
Posts: 15
Location: Netherlands
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| Posted: Oct 25, 2013 09:29 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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My addition.
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Fluorite
Carn Brea Mine, Illogan, Cornwall, England, UK.
Size 6.5 x 4 cm
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36461 Time(s) |
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Leon Hupperichs
Joined: 23 Oct 2013
Posts: 15
Location: Netherlands
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| Posted: Oct 25, 2013 09:30 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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A close up.
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Fluorite
Carn Brea Mine, Illogan, Cornwall, England, UK.
Field of view 4 cm
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36420 Time(s) |
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1461
Location: Cambridge
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| Posted: Oct 25, 2013 11:43 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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Leon
Very nice piece
James
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ian jones
Joined: 29 Jul 2009
Posts: 112
Location: london
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| Posted: Nov 04, 2013 14:58 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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Something of a Cornish rarity. Light green microcrystaline arthurite (type locality) and dark green olivenite. Collected from material around the collar of Hitchen's Shaft in the 1980s.
Arthurite was jointly named for British mineralogists Sir Arthur Russell and Arthur Kingsbury, the later now sadly rather discredited for having been found to have falsified many of the localities for his supposed field discoveries.
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Arthurite and olivenite
Hingston Down Consols, Gunnislake, Cornwall, England, UK
55x45mm. |
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36132 Time(s) |
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Vinoterapia
Joined: 03 Feb 2009
Posts: 181
Location: Houston, Tx
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| Posted: Jan 17, 2014 11:46 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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A Cassiterite micro from Cornwall.
Jose Luis.
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Cassiterite
Cligga Head, Perranzabuloe, St. Agnes District, Cornwall, UK.
FOV: 5.4 mm |
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31322 Time(s) |
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| Description: |
Cassiterite
Cligga Head, Perranzabuloe, St. Agnes District, Cornwall, UK.
FOV: 5.4 mm
A stereo pair of the previous picture. |
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31269 Time(s) |
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Jesse Fisher
Joined: 18 Mar 2009
Posts: 639
Location: San Francisco
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| Posted: May 08, 2016 12:33 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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Fluorite with pyrite from Wheal Mary Ann
| Mineral: | Fluorite, Pyrite |
| Locality: | | Wheal Mary Ann, Menheniot, Liskeard, Cornwall, England / United Kingdom |  |
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| Dimensions: | 14x9x6 cm overall size |
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30205 Time(s) |
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Jesse Fisher
Joined: 18 Mar 2009
Posts: 639
Location: San Francisco
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| Posted: May 09, 2016 17:59 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, Illogan.
| Mineral: | Fluorite on Quartz |
| Locality: | | East Pool Mine, Illogan, Camborne - Redruth - Saint Day District, Cornwall, England / United Kingdom | |
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| Dimensions: | 7x4x2 cm overall size |
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30207 Time(s) |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 5020
Location: Barcelona
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| Posted: May 11, 2017 07:32 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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The color of the Cornwall Chalcosiderite is outstanding
| Mineral: | Chalcosiderite |
| Locality: | | Phoenix United Mine, Minions, Linkinhorne, Liskeard District, Cornwall, England / United Kingdom | |
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| Dimensions: | Main "ball" size: 0.4 × 0.3 cm |
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29229 Time(s) |
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markbeckett
Joined: 06 Oct 2016
Posts: 41
Location: Cornwall
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| Posted: May 11, 2017 09:04 Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall |
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My favorite Siderite, from Carn Brea Mine, Cornwall
| Mineral: | Siderite with Quartz |
| Locality: | | Carn Brea, Pool, Illogan, Camborne - Redruth - Saint Day District, Cornwall, England / United Kingdom | |
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| Dimensions: | 11cm x 7cm |
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29191 Time(s) |
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| Mineral: | Siderite with Quartz |
| Locality: | | Carn Brea, Pool, Illogan, Camborne - Redruth - Saint Day District, Cornwall, England / United Kingdom | |
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| Dimensions: | 11cm x 7cm |
| Description: |
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29197 Time(s) |
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