Our long time member and friend, John LeBourgeois, passed away June 24, 2022. He will be sorely missed by all.



THE GEMOLOGY PROJECT
is a free Gemological Encyclopedia
that anyone can edit!

The Gemology Project: Wiki Style Gemology Encyclopedia
JOIN NOW!

 


FREE ONLINE GEMOLOGICAL INFO:

Complete Collection Of Gems & Gemology




Justin K. Prim: MAGUS GEMS




Geminterest

Magnetism in Gemstones






Gill's Historical Index to Gems and Gemology




Inclusions in Gems

Dave Gibson's Mexican Amber


BARBRA VOLTAIRE'S #1 CHOICES
for GEMOLOGICAL INSTRUMENTS



Magi Labs


ESSENTIAL SOFTWARE


Gemology Tools Professional

GemologyOnline's Book Shop

Anything purchased in the bookshop earns a small commission for GO.


DIRECT LINKS TO TOPICS OF INTEREST:

-How to Post a Picture on the Forum

-Alphabetical List: Books on Gems, Minerals, Jewelry,
Sterling and Retated Topics including valuation and
appraisal references.

-GEMS 101:Descriptions of Gems

-Chelsea Filter Reactions

-Crystal Systems

-Diamonds: The 4 C's

-Estimating Carat Weight

-DICTIONARY of GEM TERMS

-Identifying Gems w ⁄o Instruments,W.Wm Hanneman, PhD

-LaShawn Bauer's Guide to Jewelry Appraising

-Mohs' Scale of Hardness

-Properties for Gem ID

-Trade Abbreviations and Acronyms

-Treatments & Enhancements

-Synthetic vs. Imitation Gems

-Useful Gemology Links!

 

GEM and MINERAL SHOW LISTS
Upcoming Gem Shows
Mindat's Upcoming Mineral Shows

 

GEMOLOGY ONLINE STAFF:

Administrators:

Barbra Voltaire, BSc, FGG, GG
Gemologist, Geologist, Jewelry Historian
barbra@gemologyonline.com


Alberto Scarani, IGI, GG
Gemologist, Master Goldsmith, Author
alberto@gemologyonline.com

Moderators:

Conny Forsberg, FGA
Diamond cutter, Gemologist, IT Pro
conny@gemologyonline.com


Jon Rolfe
Master Gem Cutter; Lapidary Supplier
jon@gemologyonline.com

Tom Smith
Master Diamond Cutter; Lapidary Supplier
tom@gemologyonline.com

Stephen Challener
Geologist
Stephen@gemologyonline.com
Welcome to the GemologyOnline.com Forum
A non-profit Forum for the exchange of gemological ideas
It is currently Wed Jul 06, 2022 8:31 am

View unanswered posts | View active topics


Board index

All times are UTC - 4 hours


View unanswered posts

   Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. araiba like tourmaline, a misbegotten variety.

in Gems' Color

bruce_tourm

0

51

Mon Jul 04, 2022 6:46 am

bruce_tourm View the latest post

There are no new unread posts for this topic. autoclave to age baltic amber

in Colored Stones

carver

0

51

Mon Jul 04, 2022 3:36 am

carver View the latest post

There are no new unread posts for this topic. CASTING DOUBT: METAL CASTING IN THE ANCIENT WORLD

in Vintage & Antique Gemstones, Jewellery and Obects D'Art

Barbra Voltaire, FGG

0

944

Sun May 22, 2022 10:59 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) Asking your Opinion

in Vintage & Antique Gemstones, Jewellery and Obects D'Art

Anabell

0

820

Fri May 20, 2022 12:26 pm

Anabell View the latest post

There are no new unread posts for this topic. Tips on FGA exam

in Gem-A (The Gemmological Association of Great Britain)

Leel

0

1052

Thu May 05, 2022 11:32 am

Leel View the latest post

There are no new unread posts for this topic. Attachment(s) Eighteenth Annual Sinkankas Symposium

in Upcoming Shows & Events

Barbra Voltaire, FGG

0

347

Fri Apr 22, 2022 9:25 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Indicolite Mysteries!

in Beginners Only!

Shifter55

0

141

Thu Apr 14, 2022 4:44 am

Shifter55 View the latest post

There are no new unread posts for this topic. Brushless Motor mod for a Graves Mark 5XL?

in Lapidary Corner: Colored Stones

Turkinolith

0

227

Tue Apr 12, 2022 1:33 pm

Turkinolith View the latest post

There are no new unread posts for this topic. Animating Gemstones

in Photography & Photomicrography

Greenspinel

0

1452

Mon Apr 11, 2022 5:11 pm

Greenspinel View the latest post

There are no new unread posts for this topic. Rhapsody in Blue: The art and Science of blue diamonds

in Diamonds

Barbra Voltaire, FGG

0

1317

Thu Apr 07, 2022 11:47 am

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Gran Colorimeter reprogram/manual

in Appraiser's Corner

JSC VCA

0

2687

Fri Mar 25, 2022 2:40 am

JSC VCA View the latest post

There are no new unread posts for this topic. A big hello from Boulder City, Nevada

in Let's Introduce Ourselves!

QIA

0

812

Fri Mar 25, 2022 2:04 am

QIA View the latest post

There are no new unread posts for this topic. "Bala Koh-I-Noor, or the little Koh-I-Noor"

in Diamonds

Barbra Voltaire, FGG

0

350

Thu Mar 17, 2022 12:48 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) Latest MasterValuer Course Updates

in Appraiser's Corner

melhuth

0

3610

Tue Mar 15, 2022 6:42 pm

melhuth View the latest post

There are no new unread posts for this topic. Attachment(s) Coral Traceability Using Novel Genetic-Testing Method

in SSEF: Swiss Gemmological Institute

Barbra Voltaire, FGG

0

2122

Mon Feb 14, 2022 1:52 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. GIA GG distance education advice?

in GIA (Gemological Institute of America)

Jerry W.

0

606

Wed Feb 02, 2022 11:12 pm

Jerry W. View the latest post

There are no new unread posts for this topic. Will Angola become no. 1 diamond producer in the world?

in Diamonds

Barbra Voltaire, FGG

0

714

Wed Jan 26, 2022 2:09 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. MasterValuer Contact Information

in Contact Information for Gemology Schools, Labs, Research & Appraisal Facilities

melhuth

0

1430

Wed Jan 19, 2022 3:17 pm

melhuth View the latest post

There are no new unread posts for this topic. Smithsonian's NSF REU Site: Natural History Research

in Employment Opportunities

Barbra Voltaire, FGG

0

3852

Fri Jan 07, 2022 1:49 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Ethan Baxter's: EVERY ROCK TELLS A STORY

in *Meandering Footnotes

Barbra Voltaire, FGG

0

4874

Thu Dec 23, 2021 1:58 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. A Glimmer of Hope: The World's Most Famous Blue Diamond

in GIA Current Research

Barbra Voltaire, FGG

0

2953

Thu Dec 16, 2021 7:46 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. New Covid Variant Forces Rough Prices Up

in Diamonds

Barbra Voltaire, FGG

0

717

Fri Dec 03, 2021 9:37 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. AGA Anounces Bonnano Winner 2022

in TUCSON GEM SHOW 2022 SPECIAL SECTION

Barbra Voltaire, FGG

0

1020

Thu Dec 02, 2021 6:01 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. MANY BOOKS ETC ONLINE FOR FREE FROM Joseph Gill Gemologist

in Collecting Gem & Jewelry Books

gilljoseph1949

0

3840

Tue Nov 30, 2021 2:50 am

gilljoseph1949 View the latest post

There are no new unread posts for this topic. CIBJO CONFERENCE

in Upcoming Shows & Events

Barbra Voltaire, FGG

0

1314

Sun Nov 14, 2021 1:55 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. CIBJO releases Gemmological Special Report

in Colored Stones

Barbra Voltaire, FGG

0

537

Wed Oct 20, 2021 2:39 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. SF Gem and Mineral Society: Virtual Turquoise Lecture

in Colored Stones

Barbra Voltaire, FGG

0

680

Thu Oct 14, 2021 3:56 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. My Design Portfolio

in General Discussions

Arami

0

5826

Wed Oct 13, 2021 5:38 pm

Arami View the latest post

There are no new unread posts for this topic. Attachment(s) Justin Prim Makes the Cover of Journal of Gemmology!

in Gem-A (The Gemmological Association of Great Britain)

Barbra Voltaire, FGG

0

4567

Mon Sep 27, 2021 9:40 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) ASA Releases the 10th Edition of Jewelry Appraisal Handbook

in Appraiser's Corner

Barbra Voltaire, FGG

0

873

Mon Sep 27, 2021 4:44 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Implications from the Roof Diamond

in Gem-A (The Gemmological Association of Great Britain)

Barbra Voltaire, FGG

0

4160

Mon Sep 13, 2021 11:07 am

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) Cats eye sapphire

in Collector's Corner: Gems

arms

0

1694

Wed Aug 18, 2021 11:52 pm

arms View the latest post

There are no new unread posts for this topic. Dating Zircon inclusions in Sapphire

in Research

Barbra Voltaire, FGG

0

4212

Mon Aug 02, 2021 7:14 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. CIBJO: Laboratory Grown Diamond Guidlines

in Diamonds

Barbra Voltaire, FGG

0

3438

Thu Jun 17, 2021 11:38 am

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Jewellery: History, Identification and Important Trends

in SSEF: Swiss Gemmological Institute

Barbra Voltaire, FGG

0

2997

Fri Jun 04, 2021 12:58 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Flux-grown synthetic rubies sold as natural rubies

in GGTL Laboratories

Barbra Voltaire, FGG

0

8967

Wed May 12, 2021 12:41 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) Deciphering the Enigmatic Origin of Guyana's Diamonds

in Diamonds

Barbra Voltaire, FGG

0

4590

Thu May 06, 2021 12:37 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. The Story of Rewa Okan - Agodi Rubellite

in Useful Links

Dor

0

9242

Sat May 01, 2021 10:12 pm

Dor View the latest post

There are no new unread posts for this topic. The Pearl Story

in Useful Links

Dor

0

4873

Sat May 01, 2021 10:04 pm

Dor View the latest post

There are no new unread posts for this topic. Ten Exotic and Phenomenal Gemstones

in Useful Links

Dor

0

1540

Sat May 01, 2021 10:02 pm

Dor View the latest post

There are no new unread posts for this topic. The Tanzanite Story

in Useful Links

Dor

0

1524

Sat May 01, 2021 9:56 pm

Dor View the latest post

There are no new unread posts for this topic. Three Precious Gems: Rubies, Emeralds, Sapphires

in Useful Links

Dor

0

1632

Sat May 01, 2021 9:45 pm

Dor View the latest post

There are no new unread posts for this topic. The Gemstone Journey

in Useful Links

Dor

0

1510

Sat May 01, 2021 9:39 pm

Dor View the latest post

There are no new unread posts for this topic. WEBINAR:Green to greenish blue to yellow green diamonds

in Diamonds

Barbra Voltaire, FGG

0

5282

Thu Apr 22, 2021 12:20 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. The slow agony of the Kimberley Process. Ethics during COVID

in Diamonds

Barbra Voltaire, FGG

0

5375

Thu Apr 22, 2021 11:55 am

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) Mastervaluer Opportunity

in Appraiser's Corner

melhuth

0

2166

Thu Apr 15, 2021 4:24 pm

melhuth View the latest post

There are no new unread posts for this topic. Attachment(s) Bugs and Birthstones

in Virtual Marketplace

Barbra Voltaire, FGG

0

4192

Wed Apr 14, 2021 2:54 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) Emeralds

in Colored Stones

j.mcgee_1985

0

3651

Thu Mar 04, 2021 10:59 pm

j.mcgee_1985 View the latest post

There are no new unread posts for this topic. Attachment(s) Cats eye sapphire

in Appraiser's Corner

arms

0

2387

Sat Feb 27, 2021 12:04 am

arms View the latest post

There are no new unread posts for this topic. How Hydrothermal Emeralds are Created

in Synthetics and Treatments

Barbra Voltaire, FGG

0

1866

Fri Feb 26, 2021 9:54 pm

Barbra Voltaire, FGG View the latest post

Display posts from previous:  Sort by:  
Page 1 of 20 [ Search found more than 1000 matches ]
Go to page 1, 2, 3, 4, 5 ... 20  Next


Board index

All times are UTC - 4 hours


Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Gemology Style ported to phpBB3 by Christian Bullock