June 1-2—SAN FRANCISCO, CALIFORNIA: Show and sale; Pacific Crystal Guild; San Francisco County Fair Building



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

Houston's Gemological Resources
Appraisal and Gemological Lab

 

 

BARBRA VOLTAIRE'S #1 CHOICES
for GEMOLOGICAL INSTRUMENTS




Magi Labs

 

A quaint Book Shop

GEMOLOGY ONLINE'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

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 Sep 11, 2024 4:36 pm

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. Queen Victoria & Prince Albert's Bicentenary

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

Barbra Voltaire, FGG

0

10163

Thu May 09, 2019 12:59 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Upcoming Gem-A Events

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

Barbra Voltaire, FGG

0

13459

Thu May 09, 2019 12:41 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Really, really dumb question

in Beginners Only!

Shifter55

0

9045

Sun May 05, 2019 5:05 am

Shifter55 View the latest post

There are no new unread posts for this topic. Gems Mining Map - Sri Lanka and Madagascar

in Miner's Corner

ceylongems

0

28191

Mon Apr 29, 2019 8:49 am

ceylongems View the latest post

There are no new unread posts for this topic. Happy Birthday Ephsea!

in General Discussions

Barbra Voltaire, FGG

0

11429

Sat Apr 20, 2019 2:54 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) Jade Carving Value

in Appraiser's Corner

rwx

0

9893

Sat Apr 20, 2019 11:18 am

rwx View the latest post

There are no new unread posts for this topic. Ultra Tec Customer Service is Outstanding

in Lapidary Corner: Colored Stones

Bob Hodges

0

6292

Thu Apr 11, 2019 8:35 pm

Bob Hodges View the latest post

There are no new unread posts for this topic. Lotus Gemology Expands their Repitoire

in Lotus Gemology

Barbra Voltaire, FGG

0

31162

Wed Apr 10, 2019 12:36 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Exceptional-Quality “MUSGRAVITE”

in Gemological Articles

Barbra Voltaire, FGG

0

5005

Tue Apr 09, 2019 1:53 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Gem Abstracts from the Swiss Geoscience Meeting

in Gemological Articles

Barbra Voltaire, FGG

0

3163

Tue Apr 09, 2019 1:04 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. The gem has IT, (It is not focused on tourmaline!)

in Collector's Corner: Gems

bruce_tourm

0

3794

Sun Apr 07, 2019 11:57 am

bruce_tourm View the latest post

There are no new unread posts for this topic. Attachment(s) Help to indentify

in Beginners Only!

Lisen

0

1662

Sun Mar 31, 2019 1:15 pm

Lisen View the latest post

There are no new unread posts for this topic. Gem Book Club Facebook Group

in Collecting Gem & Jewelry Books

justinkprim

0

2293

Fri Mar 29, 2019 2:07 pm

justinkprim View the latest post

There are no new unread posts for this topic. Lotus Spring 2019 talking tour

in Lotus Gemology

justinkprim

0

10637

Fri Mar 29, 2019 2:04 pm

justinkprim View the latest post

There are no new unread posts for this topic. Paraiba tourmaline a semi precious gemstone!

in Collector's Corner: Gems

bruce_tourm

0

4159

Tue Mar 26, 2019 2:40 pm

bruce_tourm View the latest post

There are no new unread posts for this topic. GIA Advanced Synthetic Diamond Seminar

in Diamonds

Barbra Voltaire, FGG

0

2762

Thu Mar 21, 2019 7:15 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Pleochroism and cutting

in Gems' Color

Isi

0

3202

Mon Mar 18, 2019 6:18 am

Isi View the latest post

There are no new unread posts for this topic. Sotheby’s Magnificent Jewels – Geneva

in Appraiser's Corner

Barbra Voltaire, FGG

0

2287

Wed Mar 13, 2019 5:32 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Any cutter in Leeds?? Cutting or cabbing.

in Lapidary Corner: Colored Stones

Antonis333

0

931

Wed Feb 27, 2019 5:55 pm

Antonis333 View the latest post

There are no new unread posts for this topic. Squeezing Sapphire: The Heat+ Pressure Treatment of Sapphire

in Lotus Gemology

Barbra Voltaire, FGG

0

5477

Wed Feb 27, 2019 1:46 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Non cuprian blue/purple tourmaline. Why is it rare?

in Research

bruce_tourm

0

2760

Wed Feb 27, 2019 12:58 pm

bruce_tourm View the latest post

There are no new unread posts for this topic. The story of a stone.

in Colored Stones

bruce_tourm

0

1056

Tue Feb 26, 2019 3:14 pm

bruce_tourm View the latest post

There are no new unread posts for this topic. Marco Campos-Venuti: Banded Agates a genetic approach

in Collecting Gem & Jewelry Books

Barbra Voltaire, FGG

0

2574

Mon Feb 25, 2019 10:08 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Attachment(s) Agates from Argentina. SOUTHWEST REGION : Crater agate

in Miner's Corner

condoragatemines

0

26577

Sat Feb 23, 2019 7:15 pm

condoragatemines View the latest post

There are no new unread posts for this topic. Attachment(s) Agates from Argentina. SOUTHWEST REGION : Patagonian agate

in Miner's Corner

condoragatemines

0

14476

Sat Feb 23, 2019 6:34 pm

condoragatemines View the latest post

There are no new unread posts for this topic. GIA GEM diamond lite

in Gem Equipment

brandonGIAGG

0

1703

Thu Feb 21, 2019 12:21 am

brandonGIAGG View the latest post

There are no new unread posts for this topic. Attachment(s) Agates from Argentina. MID-WEST REGION: Condor agate

in Miner's Corner

condoragatemines

0

8543

Wed Feb 20, 2019 10:03 pm

condoragatemines View the latest post

There are no new unread posts for this topic. Attachment(s) Agates from Argentina.

in Miner's Corner

condoragatemines

0

2244

Sun Feb 17, 2019 3:01 pm

condoragatemines View the latest post

There are no new unread posts for this topic. Surprises looking at tourmaline with a spectrometer.

in Colored Stones

bruce_tourm

0

1169

Thu Feb 14, 2019 12:24 am

bruce_tourm View the latest post

There are no new unread posts for this topic. Question about the website Mineralminers

in Virtual Marketplace

Isi

0

3758

Tue Feb 12, 2019 12:33 pm

Isi View the latest post

There are no new unread posts for this topic. Gemmological and Jewelry Book Club

in Collecting Gem & Jewelry Books

Richard W. Wise

0

2342

Thu Jan 31, 2019 10:11 am

Richard W. Wise View the latest post

There are no new unread posts for this topic. A yellow color center in Paraiba tourmaline?

in Colored Stones

bruce_tourm

0

1202

Thu Jan 31, 2019 12:24 am

bruce_tourm View the latest post

There are no new unread posts for this topic. Conny Forseberg at Tucson

in Tuscon Gem Shows in Years Past

Barbra Voltaire, FGG

0

2263

Sat Jan 19, 2019 12:15 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. How much should natural untreated white sapphire cost?

in Virtual Marketplace

liawn2109

0

2336

Tue Jan 15, 2019 2:52 am

liawn2109 View the latest post

There are no new unread posts for this topic. Happy Birthday Dioptase!!

in General Discussions

Barbra Voltaire, FGG

0

4880

Sun Jan 13, 2019 11:42 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Changing Ball-Bearing on the left side of DP Pixie

in Lapidary Corner: Colored Stones

Turquoise-1977

0

864

Sun Jan 13, 2019 6:00 pm

Turquoise-1977 View the latest post

There are no new unread posts for this topic. Attachment(s) More help with identifying

in Beginners Only!

angeleanne

0

1613

Fri Jan 11, 2019 1:14 pm

angeleanne View the latest post

There are no new unread posts for this topic. Paraiba, cuprian, paraiba type, confusion about color.

in Colored Stones

bruce_tourm

0

974

Wed Jan 02, 2019 11:44 pm

bruce_tourm View the latest post

There are no new unread posts for this topic. Attachment(s) RUBY FOR SELL

in Glass, Slag and Wannabes

Faran

0

2086

Wed Jan 02, 2019 12:41 pm

Faran View the latest post

There are no new unread posts for this topic. Additional uses for diamond type spotters?

in Gem Equipment

Jan Asplund

0

1824

Sun Dec 30, 2018 5:29 pm

Jan Asplund View the latest post

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

in Colored Stones

tahitiangirl

0

993

Sun Dec 23, 2018 12:45 pm

tahitiangirl View the latest post

There are no new unread posts for this topic. A Christmas wish, researching tourmaline color.

in Research

bruce_tourm

0

2590

Thu Dec 20, 2018 2:05 pm

bruce_tourm View the latest post

There are no new unread posts for this topic. AGA Gemological Research Grant 2019

in Other topics related to Gemology

Barbra Voltaire, FGG

0

2630

Mon Dec 17, 2018 8:15 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. DNA FINGERPRINTING OF PEARLS, CORALS, IVORY

in SSEF: Swiss Gemmological Institute

Barbra Voltaire, FGG

0

5032

Mon Dec 17, 2018 2:01 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. TRACEABILITY OF GEMSTONES

in SSEF: Swiss Gemmological Institute

Barbra Voltaire, FGG

0

3017

Mon Dec 17, 2018 1:53 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Marie Antoinette’s Jewels

in Appraiser's Corner

Barbra Voltaire, FGG

0

2654

Thu Dec 13, 2018 2:37 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. 3rd Annual Night Among Gems

in Upcoming Shows & Events

Barbra Voltaire, FGG

0

3914

Tue Dec 04, 2018 3:20 pm

Barbra Voltaire, FGG View the latest post

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

in Collecting Gem & Jewelry Books

Nicky Newark

0

2554

Fri Nov 30, 2018 1:29 pm

Nicky Newark View the latest post

There are no new unread posts for this topic. Fun...

in General Discussions

cascaillou

0

5409

Mon Nov 26, 2018 1:44 pm

cascaillou View the latest post

There are no new unread posts for this topic. VJ Faceting machine

in Lapidary Corner: Colored Stones

capcuadrate

0

1093

Sat Nov 24, 2018 2:51 pm

capcuadrate View the latest post

Display posts from previous:  Sort by:  
Page 5 of 20 [ Search found more than 1000 matches ]
Go to page Previous  1, 2, 3, 4, 5, 6, 7, 8 ... 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