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Gemlab
Reports by Ted
Themelis
In
the past 30 years a wealth of important information
were collected and carefully documented by Ted
Themelis especially in the area of gem treatments.
Wide variety of diversified topics of gemological
interest are now available for anyone who has a keen
interest in the gemological sciences and needs firsthand
expert information on the subject matter. Often the
topics are controversial but all opinions must be
heard. The cost for 6 Gemlab Reports of your choice
listed below is only US$18. Order
now
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RELEASED
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GR1-01.
Ruby or Pink Sapphire? This report provides
a historical account of the various definitions and perceptions
of ruby and pink sapphire. It explains the difference between
masculine and feminine rubies, and examines the various
aspects and applications in the gem and jewelry trade.
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GR1-02.
Rubellite or Pink Tourmaline? This report examines
the various issues and arguments of classifying tourmaline
as rubellite or as pink tourmaline. Historical background
is included.
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GR1-03.
Emerald or Green Beryl? This controversial issue is
discussed and various opinions are stated. Criteria and qualifications
of calling a green beryl as "emerald" are presented
and discussed.
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GR1-04.
'Padparadscha' or Orange Sapphire?
The definition of the true natural or heat-treated classic
Sri Lankan "padparadsha" sapphire is explained
along with 'padparadsha', 'pathmaraga' and other
designated descriptions. Descriptions of the orange and similar
appearing sapphires from various African localities are also
discussed.
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GR1-05.
MAD-PAD sapphires. This authoritative and comprehensive
report provides a summary and conclusions on the "new"
heat treatment process related to Madagascan pinkish-intense
pink, orange, orange-pink, yellow, golden-yellow and other
colored sapphires. This report is replaced by my new book
Beryllium-Treated Rubies &
Sapphires. Only US$20+postage. Order
the book now.
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THE BOOK |
GR1-06.
The Beryllium Process. Interpretation
and views on the beryllium process on Morogoro rubies, Australian
BI-colored sapphires and near-colorless sapphires as performed
in my thermochemical laboratory. This report is replaced by
my new book Beryllium-Treated Rubies
& Sapphires.Only US$20+postage. Order
the book now.
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THE BOOK |
GR1-07.
"Old Wine in a New Bottle". My views on
the recently published report on "treated sapphire with
synthetic overgrowth". Early pioneer work, experiments
and observations on surface anomalies and re-crystallization
on heat-treated Sri-Lankan sapphires. First published in the
Lapidary Journal (Sept. 1986) and updated in July 2002. This
report is replaced by my new book Beryllium-Treated
Rubies & Sapphires. Only US$20+postage. Order
the book now.
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RELEASED
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GR2-01.
Oiling emeralds. This report explains the oiling process
on emeralds and other beryls as performed in the author's
treatment laboratory. Description of oiling media (oils, resins,
oleoresins), methodology of the filling process with step-by-step
diagrammatic explanations are discussed with various equipment
and apparatuses used in the oiling process. Handling and care
of the oil-treated emeralds are also included. Firsthand experience.
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GR2-02.
Heating Rubies and Sapphires: Technical Aspects. Accurately
presented in layman terms, this technical paper will assist
readers to understand the principles and theory hidden behind
every heat-treated ruby and sapphire. Firsthand experience.
Check also related topics in my books The
Heat Treatment of Ruby & Sapphire and Beryllium-Treated
Rubies & Sapphires.
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GR2-03.
Heat Treating Sapphires from Anakie District, Australia. This
report outlines a research heat treatment project on dark
blue Australian sapphires and summarize the results obtained
after heating, both batch and single heating processes. Firsthand
author's account as experienced in his thermochemical laboratory.
Check also related topics in my books The
Heat Treatment of Ruby & Sapphire and Beryllium-Treated
Rubies & Sapphires.
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GR2-04.
Heat-Treating Vietnamese Rubies & Pink Sapphires Using
Gas Method. An
account on heating rubies and pink sapphires from Luc-Yen
and Quy-Chau (Vietnam) using the gas combustion method. Advantages
and disadvantages, methodology, equipment/apparatuses used
in the process.
Check also related topics in my books The
Heat Treatment of Ruby & Sapphire and Beryllium-Treated
Rubies & Sapphires just published.
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GR2-05.
Heat-Treating Vietnamese Rubies & Pink Sapphires using
Flux Methods. An
account on heating rubies and pink sapphires from Luc-Yen
and Quy-Chau (Vietnam) using flux technology. Advantages and
disadvantages, methodology, discussion on equipment/apparatuses
and on various types of fluxes used in the process. Firsthand
experience.
Check also related topics in my books The
Heat Treatment of Ruby & Sapphire and Beryllium-Treated
Rubies & Sapphires just published.
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GR2-06.
Ruby filling process. An authoritative report on the
filling process in rubies, as experienced by the author in
his heat treatment laboratory. Fluxes, additives, fillers
and other filling media are discussed, as well as the equipment
and apparatus used in the process. Firsthand experience.
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GR3-01.
Gems from Namya, Kachin State, Myanmar (Burma).
First
report on the "rediscovered' gem areas at Namya, Kachin
State, Myanmar (Burma): Location & access, gem mining
methods, gemstone description, gemological properties, inclusion
characteristics, trading. Firsthand experience on
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GR3-02.
Update on the jade mines at Hpakant, Myanmar (Burma).
An
updated report on the legendary jade land at Hpakant, Kachin
State, Myanmar (Burma): Location/access, topography, gem mining
methods, description and types of jades, trading. Firsthand
experience in this forbidden gem mining area.
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GR3-03.
Pearls of Mergui. A fascinating journey to
the Pearl Islands of Burma (Myanmar) at the Andaman Sea, describing
the pearl farming and related topics. First eyewitness account
reported in the literature on these forbidden and off-limits
for foreign visitors.
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GR3-04.
Gem Quality Rubies from new locality in Kenya.
First
preliminary report on the newly discovered ruby and pink sapphire
mine in Kenya (undisclosed location): Description of gems,
gemological properties, inclusion characteristics, behavior
to heat-treatment. Firsthand experience.
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GR3-05.
Diamonds from Venezuela.
A
unique report on diamond mining and trading in the deep jungles
at Icabaru, San Salvador de Paul, and other inaccessible areas
in Venezuela. Detail map of all diamond fields in Venezuela
and their geological background.
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GR3-06.
Rubies and pink sapphires from Vietnam. Exploration
and gem mining on several gem-bearing ruby and pink sapphire
locations in Vietnam including Luc-Yen and Quy-Chau.
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GR3-07.
Ruby mining at Chumar.
Exploration above the clouds (at 12000 feet above sea level)
and ruby hard-rock mining at Ruydil and Chumar in Nepal.
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GR4-01.
Mineral inclusions in gemstones (Part I). A
collection of 15 mineral inclusions (30 images) in gemstones
accompanied by captions: Silk, twinning, zoning, platelets,
guest crystals, horsetail, halo, films, lily-pad, flux, etc.
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GR4-02.
Mineral inclusions in gemstones (Part II).
A collection of 15 mineral inclusions (30 images) in gemstones
accompanied by captions: nail head, pyrochlore, trapiche,
backbones, beetles, hematite, dendrites, spiro, etc.
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GR4-03.
Mineral inclusions in gemstones (Part III).
A collection of 15 mineral inclusions (50 images) in gemstones
accompanied by captions: spiro, cats eye, guest crystals,
veils, rutile crystals, etc.
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GR5-01.
The country-of-origin in ruby & sapphire. The
benefits of the opinionated gemstone reports from various
commercial laboratories are discussed. The issues of the "Burma
origin" and the wording used on the heat treatment status
are also addressed.
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GR5-02.
Ruby and sapphire as an investment. The
myth, hype, and misleading information emanating from the
mass media Telemarketing giants is discussed.
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