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Gail
Joined: 21 Feb 2008
Posts: 5839
Location: Texas, Lone Star State.
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Posted: Oct 10, 2011 07:25 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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What a way to wake up.....( https://www.mineral-forum.com/message-board/viewtopic.php?p=19942#19942 ) anyhow, here are some shots, good ...bad...or indifferent.
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_________________ Minerals you say? Why yes, I'll take a dozen or so... |
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Gail
Joined: 21 Feb 2008
Posts: 5839
Location: Texas, Lone Star State.
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Posted: Oct 10, 2011 07:35 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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I am going to take a break for a few days, see how I feel about adding more photos. I have about 500 more, but now not sure how to see which ones are best. I just don't have the time right now to go through them all and pick which are suitable.
I'll be back on Wed.
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_________________ Minerals you say? Why yes, I'll take a dozen or so... |
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Edelmin
Joined: 24 Mar 2009
Posts: 43
Location: Salamanca
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Posted: Oct 10, 2011 11:04 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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Gail, I have been enjoying all your threads on the different mineral shows you visit in your country, all of them are wonderful and make us to be there in some way.
However this photographic report of your visit to this great Museum is even better than the others, British mineralogy has been one of my favorites for years and the Museum is one of the places I want to visit some day (years ago I visited the old Geological Museum just around the corner but I had no time to visit the Natural History Museum and no choice to go back to London since then).
It is great to see all of those drawers full of witherites, Cornish copper secondaries, Herodsfoot bournonites and so on. Please keep on posting and treating us with all of these classic beauties.
Just one last thing, the specimen in picture DSC_0243_2.JPG, is it not a liroconite instead?
Thanks for your efforts in posting this great report,
Felix Garcia
_________________ Felix G. Garcia
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Gail
Joined: 21 Feb 2008
Posts: 5839
Location: Texas, Lone Star State.
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Posted: Oct 11, 2011 08:44 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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I have been trying to edit that for days, after realizing it is liroconite, but I can only seem to edit the last post I put up.
And thank you for your kind words.
_________________ Minerals you say? Why yes, I'll take a dozen or so... |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
Posts: 4904
Location: Barcelona
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Posted: Oct 11, 2011 09:15 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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Gail wrote: |
I have been trying to edit that for days, after realizing it is liroconite, but I can only seem to edit the last post I put up.
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Fixed Gail. Now you can edit all posts.
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1351
Location: Cambridge
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Posted: Oct 12, 2011 05:01 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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Thanks for the report Gail it is wonderful to see the specimens, it reminds me of my visit and how much fun that was. And that I must do another one with my son (I did promise him)
James
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Philippe Russo
Joined: 12 Oct 2011
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Posted: Oct 12, 2011 20:05 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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I do share the observations and comments of Jesse ( https://www.mineral-forum.com/message-board/viewtopic.php?p=19838#19838 ). Having been working for the past 7 years on the main different tourmalines (liddicoatites) pockets found in Luc Yen, Vietnam, their habit is very similar to the James Sowerby's large fat 17x17.5cm “rubellite” specimen found in 1795 showing extreme tapering and a dark core of 9x6cm . It would be great to analyze the British Museum specimen whether it is elbaite or/and liddicoatite.
The analogy was very striking from the very first Vietnamese specimen (re)-discovered in 2004 showing tapering, and presenting parallel adjacent crystals with prismatic terminations. The largest single specimen weights over 3 kg and is a cluster of crystals. Also the first pocket 'discovered' was at the surface of the pegmatite and showed a similar pale pink color tending to yellowish to Sowerby's specimen, while the subsequent pockets deeper in the pegmatite delivered crystals with a deeper cranberry color.
As Jesse has mentioned, I have also never seen a close habit example from Burma.
The fact that it was was presented to Col. Symes by King of Ava does not necesserely indicated that it was found in the 'Kingdom of Ava' or formerly Siam/Burma. It could have been found long ago in the nearby NE Vietnam and traded to the Burmese (those are my personal thoughts).
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Jesse Fisher
Joined: 18 Mar 2009
Posts: 629
Location: San Francisco
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Posted: Oct 13, 2011 00:19 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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Bonjour Phillippe,
Below is a photo of a tourmaline (14 cm tall) from Yen Bai, that I acquired at the Tucson show in 1995. Similar habit but obviously a thin dark green overgrowth on a pink core. As to the exact species, I have been told by one well-known pegmatite researcher that they are liddicoatite, and by another equally well known pegmatite expert that they are elbaite. Unfortunately, I have not seen any definitive studies published on these tourmalines. I suspect that, like many others, these ones have a layered and highly variable internal composition, and should likely be called simply "polychrome tourmaline."
Cheers,
Jesse
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Tourmaline Yen Bai Province, Vietman 14 cm tall |
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Jordi Fabre
Overall coordinator of the Forum
Joined: 07 Aug 2006
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Location: Barcelona
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Posted: Oct 13, 2011 13:27 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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Philippe Russo wrote: |
Having been working for the past 7 years on the main different tourmalines (liddicoatites) pockets found in Luc Yen, Vietnam...
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Welcome here Philippe.
Why you don't publish in a separate thread the history of that fabulous find? I believe you could give accurate details and maybe some image "in situ"? ;-)
Is a history that deserves to be published, and as far as I know is not too much written about it yet, just some generic details...
Cheers,
Jordi
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Gail
Joined: 21 Feb 2008
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Location: Texas, Lone Star State.
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Posted: Oct 13, 2011 15:34 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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...Absolutely stunning.
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_________________ Minerals you say? Why yes, I'll take a dozen or so... |
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Gail
Joined: 21 Feb 2008
Posts: 5839
Location: Texas, Lone Star State.
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Posted: Oct 13, 2011 15:38 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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_________________ Minerals you say? Why yes, I'll take a dozen or so... |
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Gail
Joined: 21 Feb 2008
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Location: Texas, Lone Star State.
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Posted: Oct 13, 2011 15:43 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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We walked over to the sunlight and held these amazing proustites up to see the spectacular color.
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_________________ Minerals you say? Why yes, I'll take a dozen or so... |
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Gail
Joined: 21 Feb 2008
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Location: Texas, Lone Star State.
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Posted: Oct 13, 2011 15:48 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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_________________ Minerals you say? Why yes, I'll take a dozen or so... |
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Gail
Joined: 21 Feb 2008
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Location: Texas, Lone Star State.
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Posted: Oct 13, 2011 20:27 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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_________________ Minerals you say? Why yes, I'll take a dozen or so... |
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Gail
Joined: 21 Feb 2008
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Location: Texas, Lone Star State.
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Posted: Oct 13, 2011 20:32 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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For good reason, they are very light sensitive. |
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Gail
Joined: 21 Feb 2008
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Location: Texas, Lone Star State.
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Posted: Oct 13, 2011 20:39 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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Gail
Joined: 21 Feb 2008
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Location: Texas, Lone Star State.
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Posted: Oct 13, 2011 20:43 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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Alan and my husband, Jim, are enjoying looking through drawers at historic and important pieces. We all had such a fun time of it. |
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_________________ Minerals you say? Why yes, I'll take a dozen or so... |
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Gail
Joined: 21 Feb 2008
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Location: Texas, Lone Star State.
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Posted: Oct 13, 2011 20:58 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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Gail
Joined: 21 Feb 2008
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Location: Texas, Lone Star State.
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Posted: Oct 14, 2011 10:39 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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Gail
Joined: 21 Feb 2008
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Location: Texas, Lone Star State.
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Posted: Oct 14, 2011 10:41 Post subject: Re: A trip to London and the museum. Sept 2011. Gail and Jim Spann |
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...Now this is our idea of a good time.
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