We use cookies to show content based on your preferences. If you continue to browse you accept their use and installation. More information. >

FMF - Friends of Minerals Forum, discussion and message board
The place to share your mineralogical experiences


Spanish message board






Newest topics and users posts
08 May-11:32:22 Re: hillman hall of minerals and gems (Tom Mazanec)
08 May-02:15:29 Re: magnetic serpentine? (Alfredo)
08 May-00:00:15 Re: monthly mineral chronicles, mineral guides and more... (Crocoite)
07 May-21:45:34 Magnetic serpentine? (Ken)
07 May-13:00:12 Re: collection of benjamin carballo (Benj)
07 May-07:03:24 Re: collection of david carter (Jordi Fabre)
07 May-06:44:30 Re: collection of david carter (David916)
07 May-06:36:35 Re: collection of benjamin carballo (Benj)
07 May-06:29:30 Re: collection of david carter (David916)
06 May-19:49:56 Re: the mizunaka collection - quartz over chrysocolla (Am Mizunaka)
06 May-14:33:39 Re: a mineralogical trip through italy by sante celiberti (Sante Celiberti)
06 May-10:24:20 Re: collection of david carter (David916)
06 May-09:55:18 Re: a new mineral: alpha-calcium formate (Cesar M. Salvan)
06 May-09:18:35 Re: collection of michael shaw (Michael Shaw)
06 May-08:20:53 Re: the mizunaka collection - quartz over chrysocolla (Tobi)
06 May-08:15:17 Re: collection of jean suffert (Tobi)
06 May-03:42:32 Re: collection of jean suffert (Jean Suffert)
05 May-22:37:09 The mizunaka collection - quartz over chrysocolla (Am Mizunaka)
05 May-15:14:04 Re: collection of ras (Robert Seitz)
05 May-12:23:40 Re: collection of carles millan (Carles Millan)
05 May-09:39:46 Re: collection of carles millan (Don Lum)
05 May-08:14:34 Re: collection of carles millan (Carles Millan)
05 May-07:47:50 Re: collection of carles millan (Jean Suffert)
05 May-07:17:29 Re: collection of carles millan - rhodonite from peru (Carles Millan)
05 May-06:25:50 Re: collection of carles millan - rhodonite from peru (Tobi)

For lists of newest topics and postings click here


RSS RSS

View unanswered posts

Why and how to register

Index Index
 FAQFAQ RegisterRegister  Log inLog in
 {Forgotten your password?}Forgotten your password?  

Like
82012


The time now is May 09, 2021 08:04

Search for a textSearch for a text   

A general guide for using the Forum with some rules and tips
The information provided within this Forum about localities is only given to allow reference to them. Any visit to any of the localities requires you to obtain full permission and relevant information prior to your visit. FMF is strictly against any illicit activities related to collecting minerals.
A mineralogical trip through the regions of the UK - England / Cornwall
  Goto page Previous  1, 2, 3, 4  Next
  Index -> A mineralogical trip through the regions of the UK
Like
112


View previous topic :: View next topic  
Author Message

ian jones




Joined: 29 Jul 2009
Posts: 110
Location: london


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jul 25, 2013 02:57    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

A much travelled cassiterite


1-Cassiterite Breage 1.JPG
 Description:
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.
 Viewed:  22235 Time(s)

1-Cassiterite Breage 1.JPG



1-Cassiterite Breage 1 lab.JPG
 Description:
Freiberg Mining Academy label, its style dates it to between 1880-1905
 Viewed:  22230 Time(s)

1-Cassiterite Breage 1 lab.JPG


Back to top
Reply to topic Reply with quote
Like
   

Ru Smith




Joined: 13 Oct 2012
Posts: 362


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jul 26, 2013 13:51    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

£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
Back to top
Reply to topic Reply with quote
Like
   

Ru Smith




Joined: 13 Oct 2012
Posts: 362


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jul 26, 2013 14:39    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

An imposing old specimen from Wheal Jane.


Sphalerite twin Cornwall 2.jpg
 Description:
Sphalerite (Fe-rich) with pyrite and quartz.
600' level, Wheal Jane, Cornwall, England, UK.
23 cm.
 Viewed:  22155 Time(s)

Sphalerite twin Cornwall 2.jpg


Back to top
Reply to topic Reply with quote
Like
1
   

ian jones




Joined: 29 Jul 2009
Posts: 110
Location: london


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jul 30, 2013 02:57    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

A classic from Wh Hope


1-Galena Hope 1.jpg
 Description:
Galena
Wheal Hope, Hendra Croft, Perranzabuloe, Cornwall, England, UK
Galena pseudomorphing pyromorphite, typical crystal size 5mm. Ex Arthur Scoble collection.
 Viewed:  22115 Time(s)

1-Galena Hope 1.jpg


Back to top
Reply to topic Reply with quote
Like
1
   

Roger Warin




Joined: 23 Jan 2013
Posts: 994


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jul 30, 2013 04:33    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

Very interesting and original specimen of pseudo galena.
Roger.
Back to top
Reply to topic Reply with quote
Like
   

ian jones




Joined: 29 Jul 2009
Posts: 110
Location: london


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Jul 31, 2013 02:53    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

A Cornish silver, not a thing of beauty, but a rare mineral from Cornwall


1-Silver Ludcott 1a.JPG
 Description:
Silver
Wheal Ludcott, St. Ive, Liskeard, Cornwall, England, UK
Coarse wire silver, maximum wire length 10mm, with crude calcite crystals.
 Viewed:  22013 Time(s)

1-Silver Ludcott 1a.JPG


Back to top
Reply to topic Reply with quote
Like
   

ian jones




Joined: 29 Jul 2009
Posts: 110
Location: london


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Aug 20, 2013 12:21    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

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.



1-Bournonite Boys 1.jpg
 Description:
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
 Viewed:  21895 Time(s)

1-Bournonite Boys 1.jpg



1-Bournonite Boys 1a.JPG
 Description:
rear of specimen
 Viewed:  21864 Time(s)

1-Bournonite Boys 1a.JPG


Back to top
Reply to topic Reply with quote
Like
   

Jesse Fisher




Joined: 18 Mar 2009
Posts: 584
Location: San Francisco


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Sep 20, 2013 11:21    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

Fluorite on Quartz from the East Pool Mine, Redruth. Specimen is ex American Museum of Natural History and ex Charles Bement collections.


Cornwall-F120r.jpg
 Description:
Fluorite on Quartz
East Pool Mine, Redruth, Cornwall
6x4x3 cm
 Viewed:  21664 Time(s)

Cornwall-F120r.jpg


Back to top
Reply to topic Reply with quote
Like
   

Ru Smith




Joined: 13 Oct 2012
Posts: 362


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Sep 28, 2013 18:21    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

Fine old tetrahedrite.


Tetrahedrite Herodsfoot 1.jpg
 Description:
Tetrahedrite, chalcopyrite-coated with galena on quartz.
Herodsfoot Mine, Lanreath, Cornwall, England, UK.
5 cm specimen, tetrahedrite crystals to 2 cm on edge.
 Viewed:  21639 Time(s)

Tetrahedrite Herodsfoot 1.jpg


Back to top
Reply to topic Reply with quote
Like
   

ian jones




Joined: 29 Jul 2009
Posts: 110
Location: london


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Sep 30, 2013 11:44    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

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.


Mimetite unity.jpg
 Description:
Mimetite
Wheal Unity, St Day, Cornwall, England, UK
crystals to 20mm, on quartz
 Viewed:  21463 Time(s)

Mimetite unity.jpg


Back to top
Reply to topic Reply with quote
Like
1
   

ian jones




Joined: 29 Jul 2009
Posts: 110
Location: london


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Sep 30, 2013 12:43    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

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.


Copper Botallack 2.jpg
 Description:
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.
 Viewed:  21451 Time(s)

Copper Botallack 2.jpg



copper botallack 1bb.jpg
 Description:
Another, but much coarser, wire copper from Botallack 3x2".
 Viewed:  21465 Time(s)

copper botallack 1bb.jpg


Back to top
Reply to topic Reply with quote
Like
1
   

ian jones




Joined: 29 Jul 2009
Posts: 110
Location: london


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Sep 30, 2013 15:17    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

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.


Fluorite Trevaunance 1b.jpg
 Description:
Fluorite
Trevaunance mine, St Agnes, Cornwall, England, UK
Crystals to 7mm
 Viewed:  21428 Time(s)

Fluorite Trevaunance 1b.jpg


Back to top
Reply to topic Reply with quote
Like
2
   

ian jones




Joined: 29 Jul 2009
Posts: 110
Location: london


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 03, 2013 11:21    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

A couple of pieces from Herodsfoot, one of the great specimen-producing mines of Cornwall. Its certainly one of my favourites!


Tetrahedrite HF 1a.jpg
 Description:
Herodsfoot Mine, Lanreath, Cornwall, England, UK
10mm tetrahedrite crystals coated with iridescent chalcopyrite, with associated galena and quartz.
 Viewed:  21282 Time(s)

Tetrahedrite HF 1a.jpg



Bournonite Herodsfoot 2.jpg
 Description:
Bournonite cogwheel 30mm across, on quartz. This is part of a larger specimen, and is the largest crystal.
 Viewed:  21318 Time(s)

Bournonite Herodsfoot 2.jpg


Back to top
Reply to topic Reply with quote
Like
2
   

Ru Smith




Joined: 13 Oct 2012
Posts: 362


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 03, 2013 21:23    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

Fine examples, Ian.
Back to top
Reply to topic Reply with quote
Like
   

ian jones




Joined: 29 Jul 2009
Posts: 110
Location: london


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 13, 2013 08:01    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

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.


Apatite Colcerrow 1a.jpg
 Description:
Apatite
Colcerrow Quarry, Lanlivey, Cornwall, England, UK
Crystal 13mm
 Viewed:  21006 Time(s)

Apatite Colcerrow 1a.jpg


Back to top
Reply to topic Reply with quote
Like
1
   

ian jones




Joined: 29 Jul 2009
Posts: 110
Location: london


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 19, 2013 14:56    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

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.


Siderite Maudlin 1a.jpg
 Description:
Siderite and quartz
Wheal Maudlin, Lostwithiel, Cornwall, England, UK
siderite crystals to 12mm
 Viewed:  20883 Time(s)

Siderite Maudlin 1a.jpg


Back to top
Reply to topic Reply with quote
Like
4
   

Leon Hupperichs




Joined: 23 Oct 2013
Posts: 15
Location: Netherlands


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 25, 2013 09:29    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

My addition.


P1580520.jpg
 Description:
Fluorite
Carn Brea Mine, Illogan, Cornwall, England, UK.
Size 6.5 x 4 cm
 Viewed:  20628 Time(s)

P1580520.jpg


Back to top
Reply to topic Reply with quote
Like
1
   

Leon Hupperichs




Joined: 23 Oct 2013
Posts: 15
Location: Netherlands


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 25, 2013 09:30    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

A close up.


P1580523.jpg
 Description:
Fluorite
Carn Brea Mine, Illogan, Cornwall, England, UK.
Field of view 4 cm
 Viewed:  20628 Time(s)

P1580523.jpg


Back to top
Reply to topic Reply with quote
Like
2
   

James Catmur
Site Admin



Joined: 14 Sep 2006
Posts: 835
Location: Cambridge


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 25, 2013 11:43    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

Leon

Very nice piece

James
Back to top
Reply to topic Reply with quote
Like
   

ian jones




Joined: 29 Jul 2009
Posts: 110
Location: london


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Nov 04, 2013 14:58    Post subject: Re: A mineralogical trip through the regions of the UK - England / Cornwall  

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.



Arthurite HDC 1a.jpg
 Description:
Arthurite and olivenite
Hingston Down Consols, Gunnislake, Cornwall, England, UK
55x45mm.
 Viewed:  20326 Time(s)

Arthurite HDC 1a.jpg


Back to top
Reply to topic Reply with quote
Like
   
Display posts from previous:   
   Index -> A mineralogical trip through the regions of the UK   All times are GMT - 5 Hours
Page 2 of 4
  Goto page Previous  1, 2, 3, 4  Next  

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


All pictures, text, design © Forum FMF 2006-2021


Powered by FMF