Thanks and disclaimer:

 

Important Note: The author: Vincent Pardieu is an employee of GIA (Gemological Institute of America) Laboratory Bangkok since Dec 2008. Any views expressed on this website - and in particular any views expressed by Vincent Pardieu - are the authors' opinions and do not necessarily reflect the opinions of GIA or GIA Laboratory Bangkok . GIA takes no responsibility and assumes no liability for any content on this website nor is GIA liable for any mistakes or omissions you may encounter. GIA is in particular not screening, editing or monitoring the content on this website and has no possibility to remove, screen or edit any content.

 


About FieldGemology. org

This website is home for "Shameless Travel Addicted Gemologist" Vincent Pardieu (B.Sc., GGA, G.G.). Vincent is "Supervisor, Field Gemology" at GIA Laboratory Bangkok. He is a gemologist specialized on "origin determination of gemstones".
This is also home for Vincent's regular traveling companions: David Bright, Jean Baptiste Senoble, Richard W. Hughes, Guillaume Soubiraa, Walter Balmer, Michael Rogers, Kham Vannaxay and many others like recently: Philippe Ressigeac, Oliver Segura , Flavie Isatelle and Lou Pierre Bryl.

We are gemologists (gemmologists) sharing a passion for gemstones, gemolology (gemmology), gem people and traveling.

You will find in this website gemological expedition reports and some studies of gemological interest.

Visiting many gem mining areas we saw that people in remote mining and trading areas have difficulties to access to gemological publications. As today the Internet can be accessed in most of these gem mining areas and trading centers, the author started to build this website to give gem people living there the opportunity to see the result of the gemological expeditions they were associated in. It is a way to thanks them for their time and collaboration and to help them to get access to more gemological information.

At the same time the author hope that these expedition reports will please the people from consuming countries interested in gemstones and fascinated by their mysterious origins. Our purpose here is to help people facing difficulties to get quality first hand information about gems and their origins to get the information they need through this website and its links.

With our field expeditions to gemstone mines and gem markets around the world, we intend also here to share our passion for photography, gems and our fascination for the work of the "Gem People" bringing gemstones from the ground to magnificent jewelry.

From the gems external beauty to the intimate beauty of gemstone inclusions, from gem lore to the mines, the people and the landscapes gems origin from, we expect to share with you our passion for gemstone beauty.

We also invite you to join us on some gemological forums we are active in as they are convenient tools to get rapid answers to your questions as they are regularly visited by many other passionate gemologists, jewelers, hobbyists and professionals willing to learn more and share their knowledge about gemstones.

 


Website Map

 

Index page: Vincent Pardieu's Blog


About the Author


About me : How did a countryside Frenchman became a "Shameless travel addicted gemologist"? ( Under construction)

 

Contact the author:

Facebook
Myspace
Youtube

Write Comments:

Fieldgemology Page on facebook


Popular Articles

"Tsavorite, an Untamed Gem" with R.W.Hughes, first published in ICA's InColor (Winter 2008)
"Working the blue seam" The Tanzanite mines of Merelani with R.W.Hughes first published on
www.ruby-sapphire.com
"Spinel, the resurection of a Classic" with R.W. Hughes, first published in ICA's InColor (Summer 2008)

Gemological studies

(Apr. 2009) "Sapphires reportedly from Batakundi / Basil area" a preliminary study about unusual sapphires we saw at GIA Laboratory Bangkok
(Mar. 2009) "Rubies from Niassa province, Mozambique" a preliminary study about rubies we saw at GIA Laboratory Bangkok
"Lead glass filled rubies" :
First published on AIGS Lab Website (Feb 2005)


Expedition Reports

Autumn. 2009: GIA Field Expedition FE09: Rubies from Mozambique. (pdf file)


May. 2009: GIA Field Expedition FE08: Melos and their pearls in Vietnam. (pdf file)


Dec. 2008 and Feb-Mar. 2009: GIA Field Expeditions FE01 and FE04: Rubies and sapphires from Pailin, Cambodia. (pdf file)


Aug. 2008: Sapphires and Tsavorite from the south of Madagascar with the AFG (Association francaise de Gemmologie) : Available soon...


Apr. 2008: Expedition to the new Winza ruby deposit in central Tanzania with Jean Baptiste Senoble and the support of the Gubelin Gem Lab



October 2007: Gemological expedition to East Africa (Kenya and Tanzania) with Richard W. Hughes, Mike Rogers, Guillaume Soubiraa, Warne and Monty Chitty and Philippe Bruno:


Summer 2006: Expeditions to Central Asia gem wealth with Guillaume Soubiraa and the support of the AIGS, the ICA and the Gubelin Gem Lab:


Oct. 2005: Colombia by J.B. Senoble


Sep. 2005: Madagascar with Richard W. Hughes and Dana Schorr (Will be available one of these days...)


Summer 2005: Gemological expeditions to South East Asia (Vietnam) South Asia (Sri Lanka) and East Africa (Kenya, Madagascar and Tanzania) with J.B. Senoble and Tanguy Lagache with the support of the AIGS, the ICA and the Gubelin Gem Lab:



- Feb. 2005: A visit to Thailand, Cambodia with the AFG (Association Francaise de Gemmologie) (under construction)

- 2002-2007: Expeditions to Pailin (Cambodia), Chanthaburi Kanchanaburi (Thailand) Houay Xai (Laos) Mogok, Namya (Burma) (under construction)

- 2001: Expeditions to Namya, Hpakant and then Mogok with Ted and Angelo Themelis and Hemi Englisher (under construction)

Find our blogs using the following Keywords:

     Afghanistan
     alexandrite
     Ambondromifehy
     Andilamena
     Andranondambo
     Arusha
     award
     Badakhshan
     Badakshan
     Bangkok
     Baringo
     Batakundi
     Bibile
     black star sapphire
     Bo Rai
     Book
     Bosshart
     Brazil
     Bridges
     Burma
     Cambodia
     Chanthaburi
     China
     congress
     conservation
     Dak Nong
     Davdar
     Di Linh
     diamond
     Didy
     Elahera
     emerald
     Fair Trade
     Field Report GIA
     flux
     garnet
     Gemological study
     gemology
     GGA
     GIA
     glass
     Gogogogo
     Ha Long
     Ha Long Bay
     Houay Xai
     Hughes
     ICA
     IGC
     Ilakaka
     Jegdalek
     Kaghan
     Kanchanaburi
     Kashmir
     Kataragama
     Kenya
     Khao Ploy Waen
     Kho Laem Sing
     Komolo
     Kul I Lal
     laboratory
     Laos
     lead glass filled ruby
     Lemshuku
     Lendanai
     Longido
     Lossogonoi
     Luc Yen
     Madagascar
     Mae Sot
     Mahenge
     Manyara
     Mavuco
     melo
     Meralani
     Merelani
     Mergui
     Metiyagoda
     MJP
     Mogok
     Mong Hsu
     Montepuez
     moonstone
     Morogoro
     Mozambique
     Msawize
     Murgab
     Namya
     Nangimali
     Niassa
     nin
     Okkampitiya
     Pailin
     Pakistan
     Pamir
     Panjshir
     pearl
     pearl farm
     Peshawar
     Phan Thiet
     Quy Chau
     Ratnapura
     Richard W. Hughes
     Richard Wise
     Ruangwa
     ruby
     sapphire
     Simba
     Songea
     spinel
     Sri Lanka
     star ruby
     studies
     Swat
     Taita
     Tajikistan
     Tanzania
     tanzanite
     Thailand
     tourmaline
     treatment
     Tsavo
     tsavorite
     Tunduru
     Umba
     Vatomandry
     Vietnam
     Winza
     Yen Bai
     Zambia

Find our photos using the following Keywords:

     Bai Lai
     Ha Long
     Ha Long Bay
     Luc Yen
     melo
     Minh Tien
     mining
     pearl
     pearl farm
     ruby
     star ruby
     Tan Huong
     Thac Ba
     vietnam

Discover fieldgemology newsletter:
(Currently under "hibernation status"...)


Number 01: Sept 2006
(I know: it was long time ago...)

 



Links


Special
THANKS for their support
for our field expeditions since 2005:



Any QUESTIONS?

about gems, gemology, field expeditions, studying gemology, minerals, jade, pearls or jewelry?
We recommend these FORUMS
where the author is contributing:



Do you want to
STUDY GEMOLOGY?


Here are some recommended institutes where the author studied gemology in Thailand ... and was happy about his investment!



For those willing to go further after their gemological studies: Recommended Advanced Gemological Courses:


To finish here are some BOOKS about gemology
the author have read and appreciated and would like to recommend to people willing to learn more about gemstones, gemology and the places where gemstones are found:

emeralds


 


 


Creative Commons License

The photos and articles on fieldgemology.org are licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License.
Feel free to use the photos and articles with links and credits. No commercial use without permission.
All the best,

October 12th, 2010 | Keywords:tsavorite , Lemshuku , Tanzania , Kenya , garnet Travel |
Blog Title: Article about Lemshuku tsavorite deposit, Tanzania


Dear all,
I would like to inform you of a new publication about tsavorite. It is about the geology of the Lemshuku deposit in Tanzania where these green garnets were discovered there in 1967.


"Lithostratigraphic and structural controls of ‘tsavorite’ deposits at Lemshuku, Merelani area, Tanzania",


an article by Julien Feneyrol (a), Gaston Giuliani (b), Daniel Ohnenstetter (b), Elisabeth Le Goff (c), Elias P.J. Malisa (d), Mark Saul (e), Eric Saul (e), John Saul (f) and Vincent Pardieu (g)


- (a) CRPG-CNRS, Nancy université, 15, rue Notre-Dame-des-Pauvres, 54501 Vandœuvre-lès-Nancy, France
- (b) IRD-LMTG, 24, avenue Édouard-Belin, 31200 Toulouse, France
- (c) BRGM, 3, avenue Claude-Guillemin, 45060 Orléans, France
- (d) Department of Geology, University of Dar-es-Salaam, P.O. Box 35052, Dar-es-Salaam, Tanzania
- (e) Swala Gem Traders, Uchumi House, Sokoine Road, Arusha, Tanzania
- (f ) ORYX, 3, rue Bourdaloue, 75009 Paris, France
- (g) GIA Laboratory Bangkok, 10th Floor, U-Chu-Liang Building, 968, Rama IV Road, Silom Bangrak, Bangkok, Thailand


Abstract:


The first study of the Lemshuku ‘tsavorite’ mining district is presented. From bottom to top, the lithostratigraphic column corresponds to a metasedimentary sequence composed of quartzite, fine-grained graphitic gneiss, kyanite-graphite gneiss, biotite-almandine gneiss, metasomatized graphitic gneiss and dolomitic marble. ‘Tsavorite’ occurs in quartz veins and rarely as nodular concretions. Two factors control mineralization: (1) lithostratigraphy, with ‘tsavorite’ in association with pyrite and graphite confined to quartz veins within the metasomatized graphitic gneiss; and (2) structure, with the mineralized veins characteristically controlled by tight isoclinal folds associated with shearing.


It was published in Comptes Rendus Geoscience, Volume 342, Issue 10, October 2010, Pages 778-785.

It is also currently available online

 

(Mark Saul of Swala Gem Traders presenting the author a piece of tsavorite he just mined at Lemshuku
Photo: V. Pardieu / Gubelin Gem Lab, 2007)


The author visited the Lemshuku deposit in 2005 and 2007 when Swala Gem Traders mined it. In 2009, few months after Julien Feneyrol to spend several weeks at Lemshuku to study the deposit, Swala Gem Traders stopped their mining operation there. While returning to East Africa in October 2009, the author was not able to get in contact with the new owner and thus could not visit it once again. If what is currently happening at the former mine operated in the past by Swala Gem Traders is not clear to the author, the area is nevertheless still very interesting as Tanzanite One with their "Tsavorite One" project have started also to prospect in the region around Lemshuku. The author would then not be surprised to read or hear again about Lemshuku in the future as one of the main tsavorite supplier in East Africa.

Note: Update about the July 2010 tsavorite workshop in Nairobi, Kenya:

Today I was able to communicate with Dr. Gaston Giuliani from the Nancy University on another subject related to Tsavorite: Last year in October 2009, we tried to visit together the ruby and tsavorite deposits in Kenya but our expedition was not really succesful (see blog Kenya 2009).
Dr. Giuliani and Dr. Ohnenstetter were then just back from a tsavorite workshop in Dar Es Salaam (Tanzania) and they were working on a similar project for 2010, this time in Nairobi (Kenya). Today I was told by Dr. Giuliani some excellent news about the Nairobi 2010 workshop he was then planning:
The workshop happened and reportedly turned to be very successful. After the workshop more than 40 people also were able to go on a field expedition to Tsavo lead by Dr. Cedric Simonet.
Currently a research program about tsavorite in collaboration between Kenyan and French Universities is in preparation. Dr. Giuliani told the author that he was very happy about the way things happened during summer 2010.



For more information about tsavorite, the author also invite you to read "Tsavorite, an Untammed Gem" an article written with R.W.Hughes, first published in ICA's InColor (Winter 2008)



All the best,



October 31th, 2009 | Keywords:Kenya Travel |
Blog Title: FE09, Part 06: Kenya


GIA FE09 (GIA Laboratory Bangkok Field Expedition 09): Part 08: Oct. 18 - Oct. 27, 2009: Kenya:


Field Gemology is not all the time about success stories: Sometimes we do our best but it is not enough. If success stories are nice to tell, the others can also be useful to share and sadly the Oct. 2009 expedition was one of them. It was a waste of time for most of the people involved but sadly these are things that happen...

 

In Oct. 2009 despite the support of the different Tsavorite and ruby miners from the Tsavo area who were expecting our group to visit their mines, we were not allowed to visit the gem mines near Tsavo. I have the feeling that it had something to do with Campbell Bridges murder which was still under investigation in Tsavo area at the time we intended to visit the region. It is sad as we came with the idea to do some good work which could have been useful for the Kenyan miners.

 

Our group was composed of four people: Myself, Dr. Stephanos Karempelas, a research gemologist from the Gübelin Gem Lab and two of the world most famous geologists working on gemstone and their deposits: Dr. Gaston Giuliani and Dr. Daniel Ohnenstetter from Nancy University in France.

Our project was to visit the tsavorite mines in Tsavo area as Dr. Giuliani and Dr. Ohnenstetter have the project to organize in Nairobi in July 2010 a workshop about tsavorite. Something similar to the successful one they had in Dar es Salaam (Tanzania) beginning Oct. 2009.

To prepare this workshop, as they did in Tanzania, they wanted to visit the different miners and tsavorite mines in Kenya to identify where to focus their studies and get some material to work on. As I already visited the area twice (in 2005 and 2007), I offered them to introduce them to the miners and organize this expedition in Kenya in Oct. 2009.

For that I was in contact with different miners and the current and former ICA Ambassador to Kenya for several months.

 

The main reason of failure was that two days before our arrival in Nairobi, Dr. Bernard Rop, the Kenyan Commissioner of Mines, asked us to get first an official research permit from the Kenyan National Council for Science and Technology in order to get his support to visit the miners in Tsavo.

 

I was very surprised about this demand as while visiting Kenya in 2005 and 2007, the previous commissioner never asked me to get through such process. Even more: I've to say that this was the first time (in Africa, Europe or Asia) that while trying to visit gem mining areas at the invitation of local miners, I'm asked to go through such heavy administrative process... Even in countries like Burma, things were easier! I was not expecting that from Kenya.

It was also quite a bad surprise to be informed about this only two days before our arrival in Kenya as we could have probably do something if we were informed earlier, but under such a short notice, while all the team was already in East Africa, things turned to be very difficult.

 

To get a research permit in Kenya it is usually a 3 months long administrative process and you need to be in collaboration with a local university (see for details the form to fill on the Kenyan National Council for Science and Technology website).

 

Instead to go directly to the mines and try to do some good work there, we started to visit ministries in Nairobi and, of course, to disturb people there (and friends outside) in order to try to get through this process in 1 or 2 days instead of 3 months. During 4 days we did our best to get all the documents they were asking us. The people there were very nice, but well finally we found out that it could not be done in such a short time. We decided then that it was better to accept that it could not be done properly that time and postpone out project to visit the mines in Tsavo in 2010.

Of course we could have decided to go nevertheless to Tsavo like tourists and try to do our work without the support of the new commissioner for mines. But we were not willing to give a bad impression to the Kenyan authorities that could create problems on the long term for further collaboration, even if it was very frustrating, we decided to leave Kenya without having succeeded to visit the Tsavo mining area.

 

Nevertheless we did not give up on our projects to do some good work about Kenyan gemstones:

 

In July 2010, Dr. Giuliani and Dr. Ohnenstetter from Nancy University (France) will do their best to organize in Nairobi a workshop about Tsavorite as they did this year with a lot of success in Dar es Salaam (Tanzania).

For them this missed opportunity was nevertheless not a complete waste of time as they could meet in Nairobi several key people in order to start seriously working on that project. The workshop will cover tsavorite from Tanzania, Madagascar and also gems from Kenya, even if we could not visit the mines, as I've provided Dr. Giuliani many samples from my private reference collection that I collected on site in Tsavo when I visited the tsavorite mines in 2005 and 2007.

 

On my side I spent my remaining days in Nairobi with Dr. Cedric Simonet, one of the best field geologists I know currently working in East Africa. Cedric was the former Director of Rockland Kenya mining the "John Saul Ruby Mine" in Tsavo National Park. We had some good discussions about rubies, geology, gemmology and also conservation as beside a common interest for gemology, we also have a deep love for the places were gemstones are mined. It was useful to rest and brainstorm a little... Thanks to Cedric (and his lovely family) these few days in Nairobi were not for me only a "frustrating complete waste of time and energy"...

 

Finally I would like to thanks to all the Kenyan ruby and tsavorite miners who were ready to welcome us in Kenya and were expecting our visit and who were disappointed by the fact we could not visit them and help them. I would like also to apologize to the people from the Nairobi University and at the Kenyan National Council for Science and Technology we have bothered during these days trying to speed up our case. I have the feeling that it was a complete waste of time for all these people. And I'm sorry for that.

 

I just hope that in the future things will turn better and that the Kenyan authorities will not continue to ask people willing simply to visit gem mines to get through such heavy administrative process in order to try to do some good and useful work in collaboration with the miners who invite them to visit their mines.

 

All the best,

 

 

"Tsavorite from Kenya"

Tsavorite porphyroblasts, rough and faceted stones.

Stones courtesy: Genson Micheni Musa from "Tsavolite Ltd", Photo: V. Pardieu, 2007


For more information about tsavorite, please visit "Tsavorite, an untamed beauty".



Note: October 12th 2010: Update about the July 2010 tsavorite workshop:

Today I was able to communicate with Dr. Gaston Giuliani from the Nancy University on nother subject related to Tsavorite: Last year in October 2009, we tried to visit together the ruby and tsavorite deposits in Kenya but our expedition was not really succesful as you could read earlier on that blog.
Dr. Giuliani and Dr. Ohnenstetter were then just back from a tsavorite workshop in Dar Es Salaam (Tanzania) and they were working on a similar project for 2010, this time in Nairobi (Kenya). Today I was told by Dr. Giuliani some excellent news about the Nairobi 2010 workshop he was then planning:
The workshop happened and reportedly turned to be very successful. After the workshop more than 40 people also were able to go on a field expedition to Tsavo lead by Dr. Cedric Simonet.
Currently a research program about tsavorite in collaboration between Kenyan and French Universities is in preparation. Dr. Giuliani told the author that he was very happy about the way things happened during summer 2010.

All the best,

 

 

`


August 12th, 2009 | Keywords:Bridges , Kenya , tsavorite , Tsavo , Taita Travel |
Blog Title: A mountain will be missed in East Africa.


 

 

(Campbell Bridges in Tsavo, Kenya. Photo: J.B. Senoble, 2005)



Aug. 12, 2009: "A mountain will be missed in East Africa ":

I learned today that Campbell Bridges was murdered near his mine in Kenya. It seems that he was ambushed after a dispute with a group of people over some mining rights controversy. His son Bruce Bridges was also wounded in the event.
An video from the BBC where Bruce explained what happened in an interview can be found at the following link:


This news was a real shock for me as the last time we met we were speaking about meeting each other again in October in Tsavo. Now I feel like lost.
I met Campbell at several occasions in Africa, Paris and recently at the ICA congress in Panyu, China. Meeting him at his tsavorite mine in Taita hills in Kenya in July 2005, Jean Baptiste Senoble and I had some of the best moments of our expedition in Africa. Campbell was a wonderful story teller, and it was an incredible pleasure to listen from his lips the history of his discovery of tsavorite in Kenya around a fresh beer. Thanks to him Tsavorite was named after Tsavo National Park in Kenya. Visiting his mine, we learned a lot about the geology of Tsavorite. But it was not just about the information; he was a real character, a great source of inspiration particularly for the article about tsavorite I wrote few months ago. Campbell Bridges, like John Saul, is one of these East African gemological monuments, people with a great knowledge and who changed the things about gemology and East Africa. I think particularly about people like Campbell when I say that "Gemology is not just about science but also about people".
Today the gemological community world wide is shocked to have lost Campbell. I went to his website www.tsavorite.com this morning: It is a very nice website, an example for the whole industry showing that tsavorite, and particularly the tsavorite from the Bridges mines, is more that just a commodity: There is a lot of information about this beautiful gem and its history. A blog can be found there for visitors to let a message.

It was great to visit these pages again, but next time I will visit East Africa for sure a mountain will be missed:

"What could be more romantic than a superb flashing green gemstone,
that originate from a mysterious and beautiful land
where the roars of the hunting lion shatter the silence of a star-filled African night."

Campbell Bridges, www.tsavorite.com

Nothing Campbell, nothing... You are so right!
I just want to add few words:
"Thanks you so much Campbell to have taken the time to receive us and turn two young gemologists into tsavorite lovers. It was a priceless pleasure.
You did so much to promote Africa, Kenya and the gem you loved, and for your family.

Finally your life was brutaly stolen...
What a life!
You have all my admiration.

Now you belong to Tsavo, gemology and history, we will remember you. "

Learn more about Campbell Bridges and his discovery of Tsavorite visiting www.tsavorite.com


Wishing that Bruce will recover soon, and that he will be able to look forward.

This sad event show how difficult gem mining in Africa is.

All the best to Bruce Bridges, his family, friends and of course to beautiful Tsavo and tsavorite.



October 26th, 2008 | Keywords:tsavorite , Bridges , Kenya , Tanzania , Madagascar , Tsavo , Merelani , Umba , Gogogogo , Ruangwa , garnet Travel |
Blog Title: Tsavorite untamed beauty


Tsavorite: An Untamed Beauty:

 

This article written by the author in association with Richard W. Hughes was first published in InColor, Fall 2008, pp. 36–45, the magazine of the ICA (International Colored stone Association).It was a special request from the ICA as they had appreciated another article from the author about tsavorite called "Tsavorite, une pierre Africaine" published in the French gemological magazine: "Revue de gemmologie AFG" in 2005.

The article is also available online on www.fieldgemology.org and also on Richard W.Hughes website: www.ruby-sapphire.com

 

 

 

"Tsavorite cut, rough and porphyroblast from Tsavo region, Kenya"
Stones courtesy: Genson Micheni Musa/ Tsavolite Co Ltd, Photo: V. Pardieu/Gübelin Gem Lab, 2007

 

Traveling to East Africa in 2005 with Jean Baptiste Senoble, the author priorities were mainly rubies and sapphire, nevertheless Jean Baptiste Senoble had a contagious passion for green stones and motivated the author to add to their visit schedule the tsavorite deposits located in Tsavo near the ruby mines. Things became worse for the author when JB Senoble got the support of African mining veteran Campbell Bridges, then he got into a passion for the "Untamed green beauty".

There is nothing more contagious than traveling to the source with a gem afficionado. Few years after that first adventure, the author was each time he got a possibility, the author was enjoying visiting tsavorite deposits. With this article the authors are trying to explain their interest for this fascinating gem.

All the best,



November 25th, 2007 | Keywords:Kenya , Tsavo , tsavorite , ruby , Bridges , garnet Travel |
Blog Title: Kenya 2007


A visit to Tsavo ruby and tsavorite mining areas, Kenya (October 2007):

The following "Gemstone mines of Kenya" web pages presents the result of the two gemological expeditions to East Africa in Jul. and Aug. 2005 and Oct. 2007.

The July and August 2005 expedition was a join expedition financed by the AIGS gemological Laboratory in Bangkok, Thailand (where the author was then the Laboratory Director), the Gubelin Gem Lab, in Lucerne Switzerland and Jean Baptiste Senoble, a young gemologist who was interested, after completing his gemological studies at the AIGS, to discover where the gems which were fascinating him where coming from. It was possible thanks to the support of the ICA (International Colored stone Association).

The Oct 2007 expedition was also part of a larger expedition to East Africa initiated by Richard W. Hughes, the author of "Ruby and Sapphire". The author was then gemologist at the Gubelin Gem Lab. Two young gemologists: Guillaume Soubiraa and Michael Rogers, and one of Guillaume friends: Philippe Brunot joined us in this expedition to Kenya.

The purpose of these expeditions was to visit ruby, sapphire, alexandrite, emerald, tsavorite, tanzanite and tourmaline mines in Kenya and Tanzania for gemological research purpose. Origin determination of gemstones like rubies and sapphires is the passion and an important part of the work I had to do while working in gemological labs like AIGS, Gubelin or later GIA. It is then important for a gemologist willing to specialized himself in the origin determination of gemstones to collect data on gems not only studying the reference collection inside the gem lab but also directly at the source. As a former tour guide, turned into a gemologist, it is my pleasure to share the benefit of these expeditions with you and I hope that it will benefit to the people who welcomed and helped us in the field.


 

"A fine Tsavorite find"
Kenya tsavorite miner Genson Micheni Musa from the Tsavolite mine is proudly presenting to the author a fine tsavorite porphyroblast.
Photo: V. Pardieu, 2007

 

Please visit the following "Kenya Gemstone Mines" pages (All pages in the old design before Dec 2008)

1 a) Kenya, a Gemstone safari: Kenya main page

1 b) Kenya, Summer 2005 expedition report.

2) On the way to Tsavo: The Simba ruby mine:

3 ) Tsavo, Mengare Swamp: The "Rockland" (former "John Saul") ruby mine.

4 ) Tsavo, Mengare swamp: The "Aqua" (former "Penny Lane") ruby mine.

5 ) Tsavo, Mengare Swamp: The "Equator" ruby mine.

6) Tsavo, Mengare Swamp: The "Hard Rock" ruby mine.

7) Spinels from Kasigau:

8) The Tsavolite Tsavorite mine:

9) The Bocrest Tsavorite mine:

10 ) The Nadan Tsavorite mine

11) The Baraka Tsavorite mine

12) The Scorpion Tsavorite mine

13) Color change garnets:

14) The Baringo ruby mine

15) Special Thanks, interesting links and bibliography .



All the best,



July 31th, 2005 | Keywords:Kenya , Tsavo , Simba , Baringo , ruby , tsavorite , Bridges Travel |
Blog Title: Kenya 2005


A visit to gem markets and gem mining areas in Kenya (Summer 2005):

Abstract of the Kenya 2005 page (Available at that link):
This web page presents the field expedition lead by Vincent Pardieu (then Director of the AIGS Gemological Laboratory, Bangkok, Thailand) to Kenya in July 2005. This fieldtrip was part of the expedition supported by the AIGS gemological laboratory and the Gubelin Gem Lab with the help of ICA to Asia and Africa during summer 2005. During that expedition the author was helped by Jean Baptiste Senoble, a young French gemologist who studied gemology at AIGS in Bangkok in 2005.



That expedition was planned with the support of ICA Member Suzie Kennedy and her husband Kennedy Khamwathi, a couple of Nairobi based Kenyan gem merchants. We started our visit traveling from Nairobi to Simba, a new ruby deposit on the road linking Nairobi to Voi and Mombasa. Then we continued to the Tsavo area visiting numerous ruby and tsavorite mines. Finally we returned to Nairobi to travel north and visit the Baringo area producing interesting basalt related rubies.



"ICA member Suzie Kennedy presenting a parcel of rough Baringo rubies".
Photo: V. Pardieu/AIGS/Gubelin Gem Lab/ICA, 2005

 

 



All the best,



Important Note: Vincent Pardieu is an employee of GIA (Gemological Institute of America) Laboratory Bangkok since Dec 2008. Any views expressed on this website - and in particular any views expressed by Vincent Pardieu - are the authors' opinions and do not necessarily reflect the opinions of GIA or GIA Laboratory Bangkok. GIA takes no responsibility and assumes no liability for any content on this website nor is GIA liable for any mistakes or omissions you may encounter. GIA is in particular not screening, editing or monitoring the content on this website and has no possibility to remove, screen or edit any content.