Time to catch up on reading, lapidary projects and binge watching TV. Stay home. Stay well.



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


Gill's Historical Index to Gems and Gemology






Geminterest

Magnetism in Gemstones

The Gemology Project: Wiki Style Gemology Encyclopedia









Vincent Pardieu's Field Gemology

Inclusions in Gems

Dave Gibson's Mexican Amber


Barbra Voltaire's #1 Choices for
Gemological Insturments

Magi Labs

BOOK OF THE MONTH:

The Art and Science of Gems
 The Art and Science of Gems:
Van Cleef and Arpels

As an Amazon Associate GemologyOnline
earns from qualifying purchases


THE GEMOLOGY ONLINE BOOK SHOP!


  TOOL OF THE MONTH

Aickar Digital Caliper
BelOMO 12x Triplet Loupe Magnifier

As an Amazon Associate GemologyOnline
earns from qualifying purchases

ESSENTIAL SOFTWARE


Gemology Tools Professional


DIRECT LINKS TO TOPICS OF INTEREST:

-How to Post a Picture on the Forum

- The Gemology Online Book Shop


-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 Thu Jun 04, 2020 9:34 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. Attachment(s) Jade Carving Value

in Appraiser's Corner

rwx

0

8446

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

5650

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

10680

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

2964

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

1543

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

2281

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

1046

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

736

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

2539

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

2629

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

1635

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

1648

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

1077

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

421

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

933

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

1259

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

463

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

923

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

954

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

923

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

1114

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

970

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

936

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

600

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

2298

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

802

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

445

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

728

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

947

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

3253

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

384

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

987

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

392

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

667

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

1163

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

516

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

1132

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

1096

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

2837

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

928

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

1708

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

2176

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

1038

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

3805

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

528

Sat Nov 24, 2018 2:51 pm

capcuadrate View the latest post

There are no new unread posts for this topic. Colored Stone Darkness & Brightness

in Colored Stones

Barbra Voltaire, FGG

0

439

Thu Nov 15, 2018 7:00 pm

Barbra Voltaire, FGG View the latest post

There are no new unread posts for this topic. Does anyone have experience w/ the EOS Gemchrom Colorimeter?

in Appraiser's Corner

mhisakawa

0

1204

Sun Nov 11, 2018 2:18 am

mhisakawa View the latest post

There are no new unread posts for this topic. G.O. Cutter

in Lapidary Corner: Colored Stones

Nicky Newark

0

658

Thu Oct 25, 2018 2:38 pm

Nicky Newark View the latest post

There are no new unread posts for this topic. Munichshow

in Upcoming Shows & Events

arglthesheep

0

1528

Fri Oct 19, 2018 1:36 am

arglthesheep View the latest post

There are no new unread posts for this topic. Attachment(s) Need Help with ID. Cluster of some kind of Gem/Mineral

in CSI: Colored Stone Identification

Jinxy

0

500

Mon Oct 15, 2018 12:36 pm

Jinxy View the latest post

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