CSI: Colored Stone Identification

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Please Read Before Posting Here

Last post by J S Flynn « Thu Jan 16, 2025 2:16 pm
Replies: 1
by Barbra Voltaire, FGG » Sun Oct 25, 2015 10:42 pm

1 Replies

50662 Views

Last post by J S Flynn
Thu Jan 16, 2025 2:16 pm

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Unidentified purple gem

Last post by AtelierVLJ « Thu Oct 09, 2025 4:31 am
Replies: 3
by AtelierVLJ » Mon Sep 29, 2025 12:50 pm

3 Replies

2537 Views

Last post by AtelierVLJ
Thu Oct 09, 2025 4:31 am
corundum

Last post by chrisP « Wed Apr 30, 2025 11:10 am
Replies: 4
by Bobby » Tue Apr 29, 2025 12:26 am

4 Replies

21621 Views

Last post by chrisP
Wed Apr 30, 2025 11:10 am
Can someone tell me what these are?

Last post by J S Flynn « Thu Jan 16, 2025 2:15 pm
Replies: 3
by wendyk » Thu Nov 28, 2024 7:47 pm

3 Replies

8369 Views

Last post by J S Flynn
Thu Jan 16, 2025 2:15 pm
Zandrite Absorption Spectrum

Last post by Edmundo1948 « Wed Dec 04, 2024 9:05 am
Replies: 8
by Edmundo1948 » Sat Nov 30, 2024 9:25 am

8 Replies

14433 Views

Last post by Edmundo1948
Wed Dec 04, 2024 9:05 am
Sapphire frin Vault

Last post by Barbra Voltaire, FGG « Wed May 29, 2024 2:18 pm
Replies: 8
by CPOL » Tue May 14, 2024 6:59 pm

8 Replies

16790 Views

Last post by Barbra Voltaire, FGG
Wed May 29, 2024 2:18 pm
Not sure where to ask this one. I know it's slag but...

Last post by Barbra Voltaire, FGG « Tue May 28, 2024 10:39 pm
Replies: 3
by CurazyJ » Fri May 17, 2024 5:01 pm

3 Replies

14718 Views

Last post by Barbra Voltaire, FGG
Tue May 28, 2024 10:39 pm
Gemstones or colored glass?

Last post by Barbra Voltaire, FGG « Tue Mar 12, 2024 2:23 pm
Replies: 3
by ulv » Sat Mar 09, 2024 3:39 pm

3 Replies

15131 Views

Last post by Barbra Voltaire, FGG
Tue Mar 12, 2024 2:23 pm
Jade cabochon

Last post by Barbra Voltaire, FGG « Thu Oct 19, 2023 11:23 pm
Replies: 2
by Lavrentii » Thu Oct 19, 2023 2:42 am

2 Replies

11608 Views

Last post by Barbra Voltaire, FGG
Thu Oct 19, 2023 11:23 pm
Honey color gem - please help to identify

Last post by Barbra Voltaire, FGG « Thu Oct 12, 2023 11:55 am
Replies: 2
by diagal » Fri Mar 24, 2023 12:09 pm

2 Replies

11437 Views

Last post by Barbra Voltaire, FGG
Thu Oct 12, 2023 11:55 am
Fanta Humite, Mandarin Garnet or Something Else?

Last post by Barbra Voltaire, FGG « Thu Sep 14, 2023 8:05 pm
Replies: 6
by Curious_Owner » Wed Sep 06, 2023 12:40 pm

6 Replies

13482 Views

Last post by Barbra Voltaire, FGG
Thu Sep 14, 2023 8:05 pm
What type of rock is that?

Last post by Barbra Voltaire, FGG « Sun Aug 20, 2023 1:17 pm
Replies: 3
by Remaster » Sat Aug 19, 2023 4:00 am

3 Replies

13229 Views

Last post by Barbra Voltaire, FGG
Sun Aug 20, 2023 1:17 pm
Suspected lumogarnet?

Last post by Barbra Voltaire, FGG « Sun Jul 23, 2023 12:01 pm
Replies: 7
by Elizabethdove » Mon Jul 17, 2023 11:12 pm

7 Replies

18864 Views

Last post by Barbra Voltaire, FGG
Sun Jul 23, 2023 12:01 pm
Alexandrite natural or synthetic

Last post by wilsonintexas « Mon Jul 17, 2023 3:30 pm
Replies: 12
by wilsonintexas » Wed Jul 12, 2023 1:00 pm

12 Replies

19730 Views

Last post by wilsonintexas
Mon Jul 17, 2023 3:30 pm
And now for something completely different

Last post by danielle « Thu Jul 13, 2023 11:56 am
Replies: 5
by dchallener » Mon Jul 10, 2023 6:17 pm

5 Replies

20903 Views

Last post by danielle
Thu Jul 13, 2023 11:56 am
Peruvian Opal ?

Last post by maialetto « Thu Jun 22, 2023 3:15 pm
Replies: 4
by fwill » Sun Jun 18, 2023 2:57 pm

4 Replies

14665 Views

Last post by maialetto
Thu Jun 22, 2023 3:15 pm
Opal crystals

Last post by glhays « Fri Apr 28, 2023 3:37 pm
Replies: 4
by Ayf » Mon Apr 24, 2023 2:00 pm

4 Replies

12424 Views

Last post by glhays
Fri Apr 28, 2023 3:37 pm
Please help to identify yellow transparent gem

Last post by Stephen Challener « Thu Mar 30, 2023 11:26 pm
Replies: 5
by diagal » Fri Mar 24, 2023 12:13 pm

5 Replies

7248 Views

Last post by Stephen Challener
Thu Mar 30, 2023 11:26 pm
Help identifying these purple, green, brown and blue rocks

Last post by dchallener « Thu Jan 12, 2023 1:14 pm
Replies: 2
by Casserolebaskin » Mon Jan 09, 2023 9:38 pm

2 Replies

5778 Views

Last post by dchallener
Thu Jan 12, 2023 1:14 pm
Is this color zoning indicative of flame fusion?

Last post by Stephen Challener « Sat Jan 07, 2023 2:53 pm
Replies: 6
by flat » Tue Jan 03, 2023 1:57 am

6 Replies

4728 Views

Last post by Stephen Challener
Sat Jan 07, 2023 2:53 pm
Color changing... what?

Last post by Barbra Voltaire, FGG « Tue Nov 22, 2022 12:11 pm
Replies: 8
by Shifter55 » Wed Oct 05, 2022 6:54 am

8 Replies

6296 Views

Last post by Barbra Voltaire, FGG
Tue Nov 22, 2022 12:11 pm
Would Love To know what this is!!

Last post by Stephen Challener « Tue Oct 25, 2022 2:19 pm
Replies: 12
by Season » Wed Oct 19, 2022 6:07 am

12 Replies

67357 Views

Last post by Stephen Challener
Tue Oct 25, 2022 2:19 pm
what magnification do you need to determine heat treat

Last post by Barbra Voltaire, FGG « Mon Aug 15, 2022 5:46 pm
Replies: 2
by wilsonintexas » Sat Aug 13, 2022 2:47 pm

2 Replies

5026 Views

Last post by Barbra Voltaire, FGG
Mon Aug 15, 2022 5:46 pm
Hiddenite vs green Beryl

Last post by Barbra Voltaire, FGG « Mon Aug 01, 2022 1:18 pm
Replies: 5
by firedrake » Sun Jul 31, 2022 12:20 pm

5 Replies

4869 Views

Last post by Barbra Voltaire, FGG
Mon Aug 01, 2022 1:18 pm
Identifying/Separating closely matched stones

Last post by Stephen Challener « Mon Jul 18, 2022 12:07 pm
Replies: 5
by firedrake » Sun Jul 17, 2022 10:58 am

5 Replies

5658 Views

Last post by Stephen Challener
Mon Jul 18, 2022 12:07 pm
Gem ID database/program

Last post by Barbra Voltaire, FGG « Sun Jul 17, 2022 4:10 pm
Replies: 6
by firedrake » Sat Jul 16, 2022 2:28 pm

6 Replies

4698 Views

Last post by Barbra Voltaire, FGG
Sun Jul 17, 2022 4:10 pm
Real Light Blue Topaz?? Please help.

Last post by glhays « Mon Jun 13, 2022 12:35 pm
Replies: 12
by Getstoned » Sun Jun 05, 2022 3:35 pm

12 Replies

7769 Views

Last post by glhays
Mon Jun 13, 2022 12:35 pm
Aquamarine or a clever fake?!

Last post by glhays « Mon Jun 13, 2022 11:57 am
Replies: 10
by Getstoned » Sun Jun 05, 2022 4:02 pm

10 Replies

6097 Views

Last post by glhays
Mon Jun 13, 2022 11:57 am
Blue Mystery Stone

Last post by Signature Gems « Sat May 14, 2022 1:33 am
Replies: 12
by Quinneys » Thu Feb 03, 2022 4:08 pm

12 Replies

7118 Views

Last post by Signature Gems
Sat May 14, 2022 1:33 am
Gemlab.co.uk gone!?!

Last post by dchallener « Wed Apr 06, 2022 5:44 pm
Replies: 8
by Khanh » Sat Mar 26, 2022 8:39 pm

8 Replies

5862 Views

Last post by dchallener
Wed Apr 06, 2022 5:44 pm
is this emerald?

Last post by Barbra Voltaire, FGG « Wed Mar 02, 2022 1:51 pm
Replies: 6
by Takashi85 » Mon Feb 14, 2022 6:40 pm

6 Replies

5077 Views

Last post by Barbra Voltaire, FGG
Wed Mar 02, 2022 1:51 pm
Desperately need help identifying a rock

Last post by glhays « Sat Feb 26, 2022 2:03 pm
Replies: 8
by bellebird » Mon Feb 21, 2022 11:42 pm

8 Replies

4909 Views

Last post by glhays
Sat Feb 26, 2022 2:03 pm
Transparent/ slightly opaque jade beads? (vintage find)

Last post by Stephen Challener « Wed Feb 09, 2022 5:26 pm
Replies: 10
by Jewels Lobato » Mon Jan 17, 2022 11:55 am

10 Replies

6733 Views

Last post by Stephen Challener
Wed Feb 09, 2022 5:26 pm
burmese black jade

Last post by glhays « Mon Jan 17, 2022 8:35 pm
Replies: 5
by meoh15 » Mon Jan 10, 2022 2:46 pm

5 Replies

5771 Views

Last post by glhays
Mon Jan 17, 2022 8:35 pm
Turquoise - Real or Fake?

Last post by SoulsOfWolves « Mon Dec 06, 2021 5:00 pm
Replies: 5
by SoulsOfWolves » Mon Dec 06, 2021 3:52 am

5 Replies

5529 Views

Last post by SoulsOfWolves
Mon Dec 06, 2021 5:00 pm
Ordered a monster. Now what is it?

Last post by glhays « Wed Dec 01, 2021 3:20 pm
Replies: 10
by DangerousDave » Sun Nov 28, 2021 1:47 am

10 Replies

6495 Views

Last post by glhays
Wed Dec 01, 2021 3:20 pm
Huge Tsavorite Clear - to good to be true?

Last post by Barbra Voltaire, FGG « Fri Oct 22, 2021 8:41 pm
Replies: 24
by Einklang » Tue Sep 14, 2021 5:34 pm
1

2
24 Replies

15102 Views

Last post by Barbra Voltaire, FGG
Fri Oct 22, 2021 8:41 pm
Irradiated Topaz

Last post by Stephen Challener « Thu Aug 19, 2021 12:32 pm
Replies: 9
by chathurangani » Wed Jul 12, 2017 6:50 am

9 Replies

14613 Views

Last post by Stephen Challener
Thu Aug 19, 2021 12:32 pm
Sapphire specific gravity

Last post by Barbra Voltaire, FGG « Sat Jul 03, 2021 7:25 pm
Replies: 10
by iwakasu » Thu Jul 01, 2021 5:15 am

10 Replies

11550 Views

Last post by Barbra Voltaire, FGG
Sat Jul 03, 2021 7:25 pm
2.5mm mounted green demantoid shows fingerprints and needle

Last post by Barbra Voltaire, FGG « Sat Jun 26, 2021 10:59 pm
Replies: 3
by LindsayW » Sat Jun 26, 2021 12:28 pm

3 Replies

8201 Views

Last post by Barbra Voltaire, FGG
Sat Jun 26, 2021 10:59 pm
5 Carat Montana sapphire?

Last post by Barbra Voltaire, FGG « Mon Jun 21, 2021 7:53 pm
Replies: 1
by travisduggins » Mon Jun 21, 2021 7:42 pm

1 Replies

7836 Views

Last post by Barbra Voltaire, FGG
Mon Jun 21, 2021 7:53 pm
Mystery stone

Last post by 1bwana1 « Wed Jun 09, 2021 12:46 pm
Replies: 2
by JTgemgirl » Tue Jun 08, 2021 9:12 pm

2 Replies

8585 Views

Last post by 1bwana1
Wed Jun 09, 2021 12:46 pm
Green-red colour change stone

Last post by Stephen Challener « Sat May 22, 2021 9:58 pm
Replies: 12
by baron » Fri May 21, 2021 3:45 pm

12 Replies

11446 Views

Last post by Stephen Challener
Sat May 22, 2021 9:58 pm
Can someone please help with these tumbled stones?

Last post by RogueCitrine2021 « Fri May 21, 2021 10:31 pm
Replies: 7
by RogueCitrine2021 » Tue May 18, 2021 7:18 am

7 Replies

10026 Views

Last post by RogueCitrine2021
Fri May 21, 2021 10:31 pm
New Member Seeking Help In Identification

Last post by Barbra Voltaire, FGG « Wed Apr 21, 2021 9:41 pm
Replies: 9
by Fluffy11 » Tue Apr 20, 2021 8:41 pm

9 Replies

11588 Views

Last post by Barbra Voltaire, FGG
Wed Apr 21, 2021 9:41 pm
Polished stone of some sort or glass??

Last post by glhays « Mon Apr 12, 2021 2:06 pm
Replies: 6
by NokneecapsNiko » Sun Apr 11, 2021 10:16 am

6 Replies

11035 Views

Last post by glhays
Mon Apr 12, 2021 2:06 pm
More help identifying tumbled stones

Last post by starling « Fri Apr 09, 2021 4:37 am
Replies: 4
by starling » Thu Apr 08, 2021 4:46 am

4 Replies

10815 Views

Last post by starling
Fri Apr 09, 2021 4:37 am
Need help identifying several tumbled stones

Last post by Stephen Challener « Tue Apr 06, 2021 9:44 pm
Replies: 6
by gemqueen » Mon Apr 05, 2021 2:25 pm

6 Replies

10308 Views

Last post by Stephen Challener
Tue Apr 06, 2021 9:44 pm
Can Someone Help Identify 2 Stones?! Purple Volcanic?? & ??

Last post by Stephen Challener « Wed Mar 31, 2021 1:12 pm
Replies: 4
by Crivero9015 » Sun Jan 17, 2021 3:07 am

4 Replies

8457 Views

Last post by Stephen Challener
Wed Mar 31, 2021 1:12 pm
Can Anyone Help with This Green Stone

Last post by glhays « Tue Mar 30, 2021 7:31 pm
Replies: 19
by rmohamm1 » Sun Feb 14, 2021 11:12 am
1

2
19 Replies

13599 Views

Last post by glhays
Tue Mar 30, 2021 7:31 pm
Can Anyone Help with This Red Stone

Last post by S. Rautiainen « Tue Mar 30, 2021 5:39 am
Replies: 7
by rmohamm1 » Sun Feb 14, 2021 12:30 pm

7 Replies

7887 Views

Last post by S. Rautiainen
Tue Mar 30, 2021 5:39 am

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