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Board index » General Gemology » Colored Stones

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Colored Stones

Moderators: Stephen Challener, Conny Forsberg, Alberto, Barbra Voltaire, FGG

Topics		Author	Replies	Views	Last post
	spectrum of 2 tourmalines	nasco	1	36	Fri Mar 31, 2023 3:39 pm 1bwana1
	need help to identify	bacjanaka	7	573	Fri Mar 24, 2023 10:55 pm Barbra Voltaire, FGG
	NATURAL ZIRCONS AND SAPPHIRES FOUND TOGETHER	Benshak Myles	3	289	Tue Mar 21, 2023 12:04 pm Brian
	RHODONITE VS FOWLERITE	FL Rob	1	190	Wed Mar 15, 2023 11:59 am Stephen Challener
	Bicolor Chrysoberyl Exist in nature?	JeanLi1986	4	1364	Tue Feb 28, 2023 10:13 pm Faceting 101 by Arya
	Help please	Chip	2	888	Mon Feb 06, 2023 1:04 am Barbra Voltaire, FGG
	FACET DIAGRAM ANGLES	firedrake	7	1060	Wed Feb 01, 2023 3:04 am salik
	Inclusion in ruby?	E H	2	381	Tue Jan 31, 2023 3:44 pm 1bwana1
	Blue and brown stone.	confused	11	3325	Tue Jan 03, 2023 2:24 pm 1bwana1
	An Update on Sapphires with Unstable Color	Barbra Voltaire, FGG	0	1454	Wed Dec 28, 2022 2:24 pm Barbra Voltaire, FGG
	Zoisite vs. "fancy" tanzanite	firedrake	5	441	Tue Dec 27, 2022 7:47 pm Stephen Challener
	Spessartite/Mandarin Garnet difference?	rogerg	9	822	Wed Dec 07, 2022 11:18 pm 1bwana1
	Largest Gem Ruby Ever Found in Mozambique	Barbra Voltaire, FGG	5	487	Mon Dec 05, 2022 11:56 pm Dioptase
	Visit of an Opal Mine in Mexico	NicoT	3	505	Thu Nov 24, 2022 1:32 am glhays
	Irradiated ruby	E H	3	3125	Tue Nov 22, 2022 1:03 pm Barbra Voltaire, FGG
	Any Example of before-after heating cuprian tourmaline?	JeanLi1986	1	483	Thu Oct 27, 2022 2:00 pm 1bwana1
	Color change Amethyst ? Myth or fact ? [ Go to page: 1, 2, 3, 4 ]	GemFetish	48	24216	Fri Sep 30, 2022 12:11 pm CPOL
	Neon titanium tourmaline [ Go to page: 1, 2 ]	Nicky Newark	18	5062	Mon Aug 15, 2022 5:50 pm Barbra Voltaire, FGG
	Blue Stone	streamswim	8	801	Mon Aug 08, 2022 2:18 pm Stephen Challener
	Red apatite... [ Go to page: 1 ... 6, 7, 8 ]	daver1	105	26575	Fri Jul 22, 2022 1:08 pm Stephen Challener
	Large rough ruby piece [ Go to page: 1, 2 ]	Mohmand	16	1564	Sat Jul 16, 2022 3:28 pm glhays
	autoclave to age baltic amber	carver	0	5428	Mon Jul 04, 2022 3:36 am carver
	Earring for gem101	wilsonintexas	3	705	Wed Jun 29, 2022 1:51 pm glhays
	Jade White and coloured [ Go to page: 1, 2, 3, 4, 5 ]	George Sharen	72	17036	Wed Jun 15, 2022 4:21 am danielle
	Cuprian/Paraiba tourmaline [ Go to page: 1, 2 ]	gemlab	20	2326	Mon Jun 13, 2022 5:01 pm bruce_tourm
	Vivid yellow sapphire	ByE	14	1730	Sat May 14, 2022 12:57 am Signature Gems
	Heating purple paraiba question	JeanLi1986	6	1118	Tue May 10, 2022 12:38 am glhays
	Does alexandrite's formation is an extremely rare phenomenon	ArtAtMark	12	1486	Sun May 08, 2022 4:36 pm Stephen Challener
	Flame Fusion Rubies? [ Go to page: 1, 2, 3, 4, 5 ]	rogerg	68	4348	Wed Apr 06, 2022 12:39 pm Barbra Voltaire, FGG
	bluish green to purple color change Sapphire exist? [ Go to page: 1, 2 ]	JeanLi1986	22	2255	Sat Mar 26, 2022 2:41 pm Barbra Voltaire, FGG
	Zoisite - Tanzanite	firedrake	1	484	Thu Mar 10, 2022 2:19 am arglthesheep
	Pink Topaz average size	Mohmand	6	863	Mon Feb 28, 2022 12:06 pm Mohmand
	Distinguishing Czochralski corundum with standard loupe	ArtAtMark	2	531	Sun Feb 27, 2022 3:26 am ArtAtMark
	What makes Kashmir sapphire so famous?	JeanLi1986	10	959	Thu Feb 24, 2022 2:38 pm Mohmand
	color's hue mention in Secrets of the Gem Trade [ Go to page: 1, 2 ]	ArtAtMark	18	1848	Mon Feb 14, 2022 5:26 pm glhays
	My aquamarine obsession	Jewels Lobato	12	1114	Sun Feb 06, 2022 2:54 pm Stephen Challener
	Mahenge Spinel	bunyip96	2	1085	Thu Dec 30, 2021 10:58 pm Barbra Voltaire, FGG
	Stone ID help please [ Go to page: 1, 2 ]	rogerg	16	1605	Tue Dec 21, 2021 7:52 pm Stephen Challener
	A black opal that is too bright. Have you seen on like this?	BlackOpalWorld	6	925	Mon Dec 20, 2021 3:30 pm Mohmand
	On the UV stability of morganite	JackTrick	3	558	Thu Dec 16, 2021 11:50 pm JackTrick
	THE ICA \| GEMLAB JOURNAL	Barbra Voltaire, FGG	1	448	Thu Dec 16, 2021 5:36 am danielle
	Buying gemstones in Sri Lanka	crescentgems	1	521	Tue Dec 07, 2021 12:53 am allen
	Are blue and Indicolite tourmalines the same?	Mohmand	10	1297	Sun Oct 31, 2021 5:01 am Mohmand
	Please identify stones in necklace	WhimsicalZephyr	3	1002	Fri Oct 22, 2021 6:15 pm glhays
	CIBJO releases Gemmological Special Report	Barbra Voltaire, FGG	0	5753	Wed Oct 20, 2021 2:39 pm Barbra Voltaire, FGG
	SF Gem and Mineral Society: Virtual Turquoise Lecture	Barbra Voltaire, FGG	0	5909	Thu Oct 14, 2021 3:56 pm Barbra Voltaire, FGG
	Why Do Some Colored Stones Fade?	SoulsOfWolves	4	1282	Tue Oct 12, 2021 1:12 am 1bwana1
	Vincent Pardieu Reports on New Sapphire Find in Madagascar	Barbra Voltaire, FGG	4	1562	Thu Sep 30, 2021 2:33 pm 1bwana1
	Any help identifying this? [ Go to page: 1, 2 ]	jasewaMT	18	4445	Thu Sep 23, 2021 1:37 pm glhays
	SF Gem and Mineral Society: Virtual Benitoite Lecture	Barbra Voltaire, FGG	3	1819	Sun Sep 05, 2021 12:03 pm Barbra Voltaire, FGG
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THE GEMOLOGY PROJECT
is a free Gemological Encyclopedia
that anyone can edit!

JOIN NOW!

FREE ONLINE GEMOLOGICAL INFO:

BARBRA VOLTAIRE'S #1 CHOICES
for GEMOLOGICAL INSTRUMENTS

ESSENTIAL SOFTWARE

Gemology Tools Professional

GemologyOnline's Book Shop

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

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

Colored Stones

FREE ONLINE GEMOLOGICAL INFO:

BARBRA VOLTAIRE'S #1 CHOICES for GEMOLOGICAL INSTRUMENTS

ESSENTIAL SOFTWARE

Gemology Tools Professional

GemologyOnline's Book Shop

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

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

Colored Stones

BARBRA VOLTAIRE'S #1 CHOICES
for GEMOLOGICAL INSTRUMENTS

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