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PRODUCTS & SERVICES PROVIDED BY T. THEMELIS - GEMLAB

COURSE #510-CLASS #42 March 9-15, 2015- CLASS IS FULL
This class #42 is reserved for a special group of gemologists from a major commercial gemological laboratory.

COURSE #510-CLASS #43 May 18-23, 2015 *** UPDATED TO 6 DAYS ****
This class is under formulation and the dates are only indicative. If you are interested to attend, please email your preferred dates and will work something out. New information on heating ruby-sapphire are constantly added. Click here for course details.

Course Dates
Registered:
Pending:
Available seats:
May 18-25
2
0
4

GEM TREATMENT EQUIPMENT NEW MODELS AVAILABLE NOW
Our affiliate web site provides all information on our high temperature gem furnace NEW models M50P-1700, M80P-1700, oiling model HPLT-100D and related equipment we fabricate in our workshop in Bangkok.

www.gemstonetreatments.com

M80P-1700


BOOK PROMOTION B4-2014 "GEMS & MINES OF MOGOK"
Ted's "Gems & Mines of Mogok" , poster "Property Chart of Mogok Gems", poster "Gems & Mines of Mogok" and the very special DVD on Mogok composed in 2008 are on now on sale. List US$219. Promotion price US$175 including airmail-SAL postage around the world. Click below for details on each item included in this promotion. Order promotion B4-2014 here.


STATUS ON THE 3rd Edition - "The Heat Treatment of Ruby & Sapphire"
The 3rd edition of the most authoritative book on this subject is in the last stage of the updating process with important revisions. The 3rd edition has grown to a monster size book containing over 850+ juicy, full-color pages consisting of two volumes.

Volume I. The topics in this volume are focused on the attributes of rubies & sapphires (color irregularities, lattice abnormalities, clarity, porosity, diaphaneity & other imperfections) and their effect in heating under different heating parameters and profiles. Heat treatment technology, practical applications and heating equipment are discussed in detail. This volume contains over 450 full color pages with over 1,100 illustrations, photos, and diagrams.

Volume II. The different types of the rubies & sapphires emanated from over 50 confirmed mining sites are discussed in detail and their corresponding heat treatment experiments are reported as performed by the author in his gem treatment laboratory in Bangkok. This volume contains over 350 full color pages; over 800 illustrations and photos. Numerous appendices with technical references and tables are provided. Contact us to reserve your copy.

I wish to thank all colleagues and clients who have been waiting patiently for the 3rd edition. Bear with me a little longer, you will not be disappointed! Due to high production costs only 500 copies will be printed for each volume. The books will be sold directly from my labin Bangkok. Amazon and other book dealers will not be involved. Remember, the first edition of The Heat Treatment of Ruby & Sapphire by Ted Themelis printed in 1992 was sold out in 1996. There are currently a few second hand copies selling on Amazon.com from US$343 to US$3,115...! Contact us to reserve your copy.


"Beryllium-Treated Rubies & Sapphires" - REPRINTED - AVAILABLE NOW..!
"Flux enhanced Rubies & Sapphires" - REPRINTED - AVAILABLE NOW..!
SOLD OUT: "Mogok - Valley of Rubies and Sapphires" - NO REPRINT IS EXPECTED

GEM TREATMENTS AND POLITICS : THE BITTER TRUTH
After 25 years in heating ruby-sapphire, I concluded that those rubies-sapphires heated with borax, cryolite and other fluxes should be classified as 'SEMI-SYNTHETIC" or some similar designation. Why? Fluxes cannibalize and partially dissolve part of the ruby-sapphire lattice. Conclusion: Partially dissolved corundum = partially synthetic corundum (or partially natural corundum). –Dr. Franken-Stone, Grandmaster of Gem Treatments


TED's OPINION
The word "gem" is relative and loosely used; it should be redefined. Fluxed-treated gemstones with/without chromophores and fillers are actually semi-synthetic, hybrid, or composite products and do not qualify to be called “GEMS”. Only untreated gems should be called “GEMS”. –Dr. Franken-Stone, Grandmaster of Gem Treatments


Adventures of Ted Themelis to exotic and dangerous gem mining areas around the globe. More..



 
 
 
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