Dear Friends and Colleagues,

View from Sas Ciampac, 2672 m with interesting geological formations of Sella Group in the Dolomites, Italy

I have been travelling  in Europe in late June/early July and was lucky to spend two weeks in the Dolomites (Colfosco and Cortina d’Ampezzo – both places ideal for alpine hiking and mountain biking).  After my return we are now getting ready for the next Vancouver Gem & Mineral Show in Kitsilano scheduled for August 11 – 13. Books, used instruments, special gem study collections with gem and mineral liquidation are on sale. I am looking forward to meeting you. And have a nice summer holiday! Wolf Kuehn

GL Gem Halogen Light Holder Update

Recent purchasers of the 2017 GL Gem Spectrometer may have noticed an additional SMA 905 port on top of the GL Gem Light holder.

Together with a solarization resistant fiber assembly the extra port can be used to connect with the built in halogen light and/or attached to other UV light sources (UVNS) and lasers.

We are just beginning with our research and will report about possible applications in the next GL Newsletter. 

UVNS assembly with fiber probe

A new supply of the GL Gem Spectrometer 2017 model will be again available by August 15; please pre-order now.

GL Gem Raman Software Update

Rapid search with integrated databases

We have updated the GL Gem Raman PL532 2016/17 model software to final version 3.1. The integrated search engine can now accommodate customized databases with up to 3,000 references; search time is under one second which is probably the fastest presently known. If you have not received the upgrade package with updated reference libraries please contact us. This is for version 3.xx software only. Order the 2017 model of the GL Gem Raman PL532 here.

Vancouver Gem Show, August 2017

Vancouver Gem & Mineral Show, Kitsilano Arena, 2690 Larch St, Vancouver

Friday, August 11, 12:00-9pm
Saturday, August 12 , 10am-7pm
Sunday, August 13, 10am-6pm

Admission Fee at the Show doors:
General: one-day ticket – $8, three-days ticket – $12
Senior/Student: one-day ticket – $6, three-days ticket – $9
Children 12 and under free (with adult)

The exciting triennial Gem & Mineral Show coming to Vancouver following successful shows in Calgary, Edmonton, Victoria and Kewlowna.

We will have a booth representing the Canadian Institute of Gemmology (C.I.G.) and Gemlab Research & Technology(Gemlab R&T) demonstrating the latest advanced gem testing equipment. Books (new Gem Buying Guide by Newman) and instrument sales (used equipment listing (PDF)), special gem study collections and large gem and mineral liquidation sale.​

The third Vancouver Gem Show this year will be held again in the fall at the PNE from 1-3 December 2017. 

Please note in your calendar the following dates:

• GEM 150 Gem Identification, Vancouver, November 8 – 10, 2017
• GEM 350 Advanced Spectroscopy Workshop, November 10, 2017
• GEM 250 Advanced Gem Identification, November 11 – 13, 2017
• Visit us at the Vancouver Gem Show, August 11- 13

GL Gem Raman PL535 2017 model

The GL Gem Raman system is being used by jewellery appraisers, gem dealers, mineral collectors, researchers in geoscience applications in 23 countries. With the new GLGemRaman software (version 3.1) spectra can be saved and matched with the integrated spectral library of up to 3000 gem references. Please order here.

Download newest Gems & Gemology Spring 2017 issue (PDF). Excellent article about jadeite and its sources with spectral references important for GLGemSpec users. Also interesting observations about CVD grown diamonds.Tucson and Lab News. Take the 2017 Challenge Test! Good luck.

FOR SALE

Save US$ 1,000: GL GemRaman PL532 TEC Demo unit in excellent condition.

Used Kyowa gemmological microscopes and refractometers; download current listing (PDF). These and other instruments are for sale during the Vancouver Gem Show.

Gemstone Buying Guide, Third Edition by Renee Newman

This updated full-colour guide to coloured gems provides concise yet comprehensive information on quality evaluation, price comparison, gem identification, cutting styles, treatments, fake stones, optical effects, gem care and geographic sources. Many of the gems are shown mounted in striking designer jewelry. There are 323 new colour photos and several new gem species and varieties in this 3rd edition. Price Can$ 26.95 (available during the Vancouver Gem Show)

Dear Friends and Colleagues,

after a sunny and pleasant week while exhibiting at the AGTA GemFair in Tucson, Arizona we are now preparing for the Vancouver Gem & Mineral Show next week. Please visit us at booth # 37 in the PNE Forum exhibit halls. There are numerous gems and minerals (study sets), various books and gem testing instruments for sale. Have your jewellery tested with our on-site GL Gem Raman PL 532  spectrometer (two items free). Renee Newman’s new “Gemstones Buying Guide” is also available.

I am looking forward to meeting you,

Wolf Kuehn

Please note in your calendar the following dates:

• GEM 150 Gem Identification, Vancouver, May 10 – 12
• GEM 350 Advanced Spectroscopy Workshop, Vancouver, May 12
• GEM 250 Advanced Gem Identification, Vancouver, May 13 – 15
• Visit us at the Vancouver Gem Show, March 24 – 26

New Books

Diamonds in Nature: A Guide to Rough Diamonds

Dr. Ralf Tappert participated at the last C.I.G. Diamond Grading workshop and donated a copy to our library. Diamonds in Nature: A Guide to Rough Diamonds illustrates the range of crystal shapes, colours, surface textures, and mineral inclusions of rough, uncut, naturally forming diamonds. Each chapter contains photographs that show the unique physical characteristics of the diamonds, and the accompanying text describes the processes that led to their formation. This book is an invaluable reference manual for professional geoscientists―including gemmologists and exploration geologists.

Gemstone Buying Guide, Third Edition

This updated full-colour guide to coloured gems provides concise yet comprehensive information on quality evaluation, price comparison, gem identification, cutting styles, treatments, fake stones, optical effects, gem care and geographic sources. Many of the gems are shown mounted in striking designer jewelry. There are 323 new colour photos and several new gem species and varieties in this 3rd edition. Price Can$ 26.95 (available during the Vancouver Gem Show)

From Gemlab Research & Technology

GL Gem Spectrometer 2017 model

Our BESTSELLER with over 300 users in 35 countries. With the new “Point & Shoot” GLGemSpec software (version 3.3)  spectra can be saved and matched with the integrated spectral library of over 100 gem references. For diamond characterization we  recommend the use of the GL Gem Spectrometer to detect any “Cape lines”. If not present inspect the diamond under a microscope with crossed polarizers; for instructions download article here (PDF).

For diamond PL studies we recommend the Nichia UV 365nm LED flashlight; it is the best true LW UV LED light with almost no visible light being emitted.

The 2017 model of the GL Gem Spectrometer is now available.

Watch how a normalized absorption spectrum of green glass is obtained in 25 seconds (video, no sound).

GL Gem Raman PL535 2017 model

The GL Gem Raman system is being used by jewellery appraisers, gem dealers, mineral collectors, researchers in geoscience applications in 22 countries. With the new GLGemRaman software (version 3.2) spectra can be saved and matched with the integrated spectral library of over 300 gem references or imported into a separate searchable database program with over 3,500 edited references; this database is linked to the large on-line mineralogical RRUFF database for Raman spectra.

Download newest Gems & Gemology Winter 2016 issue (PDF). Interesting Lab Notes. 

FOR SALE

Save US$ 1,000: GL GemRaman PL532 TEC Demo unit in excellent condition.

Used Kyowa gemmological microscopes and refractometers; download current listing (PDF). These instruments are for sale during the Vancouver Gem Show.

Vancouver Gem Show, March 2017 

Vancouver Gem & Mineral Show at PNE Friday, March 24th 2017, 12:00-9pm Saturday, March 25th 2017, 10am-7pm Sunday, March 26th 2017, 10am-6pm Admission Fee at the Show doors: General: one-day ticket – $8, three-days ticket – $12 Senior/Student: one-day ticket – $6, three-days ticket – $9 Children 12 and under free (with adult)

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Dear Friends and Colleagues,

after attending  Facets 2016 in Sri Lanka and spending some time in the Austrian Alps I am back  preparing for our fall activities. I am looking forward to the upcoming workshop and welcome our foreign participants.

I want to thank Gamini Zoysa who hosted an Advanced Spectrometry Workshop in Colombo after the gem show; we had attendees from several countries who could familiarize themselves first hand with the operation of  the GL Gem Spectrometer  and the GL Gem Raman PL535.

Also start planning for the AGTA GemFair in Tucson from Jan 31 – Feb 5.

Please note in your calendar the following dates:

• GEM 150 Gem Identification, Vancouver, Nov. 12 – 15
• Advanced Spectroscopy Workshop, Vancouver, Nov. 11
• Advanced Gem Identification, Vancouver, Nov. 12 – 15
• Join us at the AGTA GemFair in Tucson, Jan 31 – Feb 5, 2017
• Visit the Vancouver Gem Show, March 24 – 26, 2017

Visit to the Gem Mining Areas in Rathnapura, Sri Lanka

I visited several several small scale sapphire mines nearby with Kasun (Hotel Gem Land).

More images and report at the Facebook page of the Canadian Institute of Gemmology.

Highly Recommended New Book

I just received this exceptional new book (almost coffee table size). Each of the 440 pages is full of images and in-depth descriptions of gems and jewellery; I liked in particular the section on emerald and opal.

It can be purchased for US$ 35 or less at Amazon or Target.

From Gemlab Research & Technology

GL Gem Spectrometer 2016/17 model

We have replaced the motherboard in the GL Gem Spectrometer with a modern modular design and faster microprocessor. This will allow us to add new features and components in the future such as Bluetooth, WiFi communication, database search, etc. With the new GLGemSpec software (version 3.2)  spectra can be saved and matched with the integrated spectral library of over 180 gem references (experimental).

The 2016/2017 model of the GL Gem Spectrometer is now available.

Watch how a normalized absorption spectrum of green glass is obtained in 25 seconds (video, no sound).

GL Gem Raman PL535 2016/17 model

Our Raman spectrometer comes with a new motherboard, “Point & Shoot” software and integrated spectral library; fast averaging allows real-time observation of the Raman spectrum. All units come now with a mechanical laser security lock.

Databases have been updated and are available for download in the GLGemRaman Support section With the new GLGemRaman software (version 3.2) spectra can be saved and matched with the integrated spectral library of over 300 gem references or imported into a separate searchable database program with over 3,500 edited references; this database is linked to the large on-line mineralogical RRUFF database for Raman spectra.

FOR SALE

One GL GemRaman PL532 TEC Demo unit in excellent condition.

Various gem testing tools; download current listing (PDF).

AGTA GemFair in Tucson

Join us at booth 31 at the Galleria Level of the Tucson Convention Centre

Vancouver Gem Show, March 2017 

March 24 – 26 Pacific National Exhibition Forum 2901 E Hastings St Vancouver, BC Friday, March 24, 12:00-8pm Saturday, March 25, 10am-6pm Sunday, March 26, 10am-5pm

Admission Fee at Show doors:
General: one-day ticket – $7, three-day ticket – $10
Senior/Student: one-day ticket – $5, three-day ticket – $7
Children 12 and under free (with adult)

BIG GEM LIQUIDATION SALE

We will have a booth representing the Canadian Institute of Gemmology (C.I.G.) and Gemlab Research & Technology (GLR&T) demonstrating the latest advanced gem testing equipment.

Instrument sales: used equipment listing (PDF), special gem study collections, on-site gemmological services (small nominal fee), etc.

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Dear Friends and Colleagues,

We had many visitors to our booth during the Vancouver Gem & Mineral Show last week-end; I am now preparing for a trip to Europe and Sri Lanka. Please note that  there are limited Office Hours from August 23 – September 19.

If you are interested in participating in an advanced spectroscopy workshop (“Raman and PL Spectroscopy in Gem & Mineral Identification” with hands-on exercises) on September 7  – a few days after FACETS Sri Lanka, Colombo (September 1 – 4) – contact Gamini Zoysa at gaminigz@hotmail.com for further information.

Enjoy the rest of your summer holiday season.

Wolf Kuehn

A new educational CD about spectroscopy

John Harris has published a Guide to the Spectroscope (PowerPoint presentation). It is a valuable educational tool for beginners as well as experienced spectroscopists. Instructors will love the format as the guide can easily be projected in a classroom situation or during a workshop.  .

Also have a look at his “Through my Spectroscope” column which now includes  his own GL Gem Spectrometer.

New version of Spekwin32

Dr. Menges has published the final version of Spekwin 32 (1.72.2, June 15); it is a comprehensive software for editing and publishing spectra and allows direct import of GLGemSpec files (.fak) and GLGemRaman files (.rruff). He has started work on the all-new Spekwin32 successor to be released later this year.

Of particular interest is the Spectroscope View for owners of the GL Gem Spectrometer. Download the guide “Show Spectroscope View”

Also look at his universal software for DIY webcam spectrometers.

News from Gemlab R&T

Users of the new software version 3.00 of both the GL Gem Spectrometer and the GL Gem Raman PL535 2016/17 models should soon receive a small update.

The spectrometer software will have an “auto-y scale” icon (like in the Raman software by default) which keeps the spectrum visible at all times; this is possible to the new electronics built into the model 2016/17 spectrometers. As the spectrum is delivered in real-time adjustments to exposure, etc are seen immediately.

For the Raman software the search function will be unlocked and the provided data-bases can be accessed directly; user spectra can then then be easily added.

FOR SALE

GL GemRaman PL532 TEC Demo (2015 model refurbished)

Meiji GEMZ-8TR microscope  in almost new condition.

We also have 2 used Kyowa microscope setups (20x, 40x, made in Japan) and 2 used Kyowa refractometer units (made in Japan) for sale. For sale: 1 calcite dichroscope, 1 grating diffraction and 1 prism spectroscope with halogen light source and several other testing instruments. Please contact us if you are looking for a particular testing instrument.

Download current listing (PDF).

Fall 2016 Workshops

We have few spaces available at the following classes to be held at the Sandman Signature Hotel – Vancouver Airport, Richmond B.C.; please register on-line:

• GEM 150 Gem Identification, Vancouver, Nov. 12 – 15
• GEM 350 Advanced Spectroscopy Workshop, Vancouver, Nov. 11
• GEM 250 Advanced Gem Identification, Vancouver, Nov. 12 – 15

Foreign students must enter Canada on a visitor’s visa; copy of official Visa document must be presented 40 days prior (by October 1, 2016) to course commencement.

We recently  joined the ISG Global Network; it is free and provides a vast resource base for anyone interested in gems and gemmology.

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Dear Friends and Colleagues,

we have been busy with various gem shows/workshops and are now preparing for our late summer/fall activities. Please visit us at our booth #33 during the Vancouver Gem & Mineral Show  next week. 

Vancouver Gem Show, August 2016

August 12 – 14 Kitsilano Ice Rink 2690 Larch St, Vancouver, BC Friday, August 12, 12:00 – 8pm Saturday, August 13, 10am – 6pm Sunday, August 14, 10am – 5pm

Admission Fee at Show doors:
General: one-day ticket – $7, three-day ticket – $10
Senior/Student: one-day ticket – $5, three-day ticket – $7
Children 12 and under free (with adult)

We will have a booth representing the Canadian Institute of Gemmology (C.I.G.) and Gemlab Research & Technology (GLR&T) demonstrating the latest advanced gem testing equipment.

Books and instrument sales (Meiji GEMZ-8TR), special gem study collections, free on-site gemmological services (2 items per visitor), etc.

Please note in your calendar the following dates:

• Join us at FACETS Sri Lanka, Colombo, September 1 – 4. Several workshops are being planned. TBA
• GEM 210 Diamond Grading Workshop, Vancouver, Nov. 8 – 10
• Advanced Spectroscopy Workshop, Vancouver, Nov. 11
• Advanced Gem Identification, Vancouver, Nov. 12 – 15

Upgraded GL Gem Raman PL535 2016/17 model

Our Raman spectrometer  received a new mother-board and works with the new software version 3.00; fast averaging allows real-time observation of the Raman spectrum. Since 2016 all units come with a mechanical laser security lock.

All databases have been updated and are available for download in the GLGemRaman Support section; for new users we recommend to read the information for Version 3.xx.

GL Gem Spectrometer 2016/17 model

After five years and a user base of over 200 around the world we decided to replace the motherboard in the GL Gem Spectrometer with a modern modular design and faster microprocessor. This will allow us to add new features and components in the future such as Bluetooth, WiFi communication, database search, etc.

The 2016/2017 model of the GL Gem Spectrometer is now available for purchase at a slightly higher price (US$ 1,695).

Watch how a normalized absorption spectrum of green glass is obtained in 25 seconds (video, no sound).

For users of the older spectrometers we upgraded the software to version 2.8;  an upgrade package is available for download in the GLGemSpec Support section. To access the user section you have to log-in; if you lost your password please request a new one and the system will send it to your e-mail address.

FOR SALE

Meiji GEMZ-8TR microscope 

Various gem testing tools; download current listing (PDF)

Fall 2016 Workshops

We have few spaces available at the following classes to be held at the Sandman Signature Hotel – Vancouver Airport, Richmond B.C.:

• GEM 210 Diamond Grading Workshop, Vancouver, Nov. 8 – 10
• Advanced Spectroscopy Workshop, Vancouver, Nov. 11
• Advanced Gem Identification, Vancouver, Nov. 12 – 15

Foreign students must enter Canada on a visitor’s visa; copy of official Visa document must be provided 40 days prior (by October 1, 2016) to course commencement.

We recently  joined the ISG Global Network; it is free and provides a vast resource base for anyone interested in gems and gemmology.

PLEASE NOTE: We will have limited Office Hours from August 23 – September 19 due to travelling in Europe and Far East.

 Member of ISG Global Network