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Does this high end amethyst/calcite piece seem artificially altered? I can’t work it out.
7
Ning
2903
Feb 14, 2024 06:54Ning
Possible Fake: Blue Hemimorphite from Ojuela
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41
Ibrahim Jameel
61918
Dec 31, 2023 13:23alfredo
Fake chrysocollas from Congo
0
FMF Forum
18789
Jun 13, 2023 10:19FMF Forum
Does Citrine Occur Naturally as a Geode?
11
Stone Mania
11528
May 25, 2023 15:40Jordi Fabre
Interesting fake Cavansite
3
Joseph DOliveira
11270
Feb 01, 2023 22:09alfredo
Blue herderites? from Badakhshan Afghanistan?
4
Christophe Gobin
15556
Mar 25, 2022 00:19Christophe Gobin
Goethite from Imini mine (Morocco)
0
Cesar M. Salvan
19908
Mar 13, 2022 14:57Cesar M. Salvan
Aura Coating
15
AleaBankston
26081
Jun 06, 2021 14:38Riccardo Modanesi
Is there Proof of Kobyashevite Fakes?
5
rgangue
21470
Sep 23, 2020 11:59Dan Kniffin
Please help! Is this "Ocean Jasper" Real or Dyed/Fake/Enhanced?
14
Garret
31426
Sep 12, 2020 15:22Garret
Fake Colombian Emeralds
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35
Fiebre Verde
89736
Dec 14, 2019 11:24John Betts
Opinions appreciated....Citrine or glass?
6
AmyinTX
19829
Nov 30, 2019 03:03James Catmur
Specimens incorrectly labeled Bravoite coating Pyrite from Colorado
11
John S. White
46144
Nov 23, 2019 07:55Mathias
Milpillas "Electric Blue" Azurites AND Malachites - Natural or Chipped?
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20
bob kerr
48423
Aug 07, 2019 17:26Birdbrain59
Are there any Sicilian Sulphur fakes still around?
12
Bob Harman
23478
Jun 09, 2019 09:46Bob Harman
Specimens from near the Coronel Manuel Rodriguez Mine, Chile
11
Kevin Conroy
21991
Jun 02, 2019 16:55Kevin Conroy
Irradiated fluorite from China?
5
Pierre Joubert
17794
Jan 07, 2019 15:59Joseph DOliveira
The intense oiling of Chinese minerals
16
nitana2000
46357
Dec 09, 2018 13:34Gary White
Who to trust with gemstone identification? Are some gemologists better than others?
11
Adrian August
21500
Sep 09, 2018 10:10LeadMineGal
Fake specimens from the Erongo and Brandberg region.
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23
Pierre Joubert
38822
May 04, 2018 09:31Pierre Joubert
Iron Man
7
vic rzonca
17218
Aug 28, 2017 07:57vic rzonca
Tanzanite?
6
Harald
16381
Aug 02, 2017 22:31SteveB
Quarter million fake Tourmaline cluster.
19
texasdigger
28484
May 22, 2017 11:36markbeckett
Please help me identify if these are fake or treated
16
TomS
30152
Feb 09, 2017 22:10Bob Harman
Treatments, Synthetics and Simulants: QUARTZ & CHALCEDONY
3
cascaillou
18728
Dec 20, 2015 20:34cascaillou
Fake silver crystals Morocco
1
Christophe Gobin
12263
Nov 24, 2015 03:59Jordi Fabre
Chinese "Hydrozincite" specimens?
4
Barry Vincent
14404
Oct 08, 2015 03:23Jordi Fabre
Bismutoferrite from China...Caveat Emptor
3
Peter Megaw
13054
May 31, 2015 18:56alfredo
Milpillas Azurite - fake specimen
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27
Cascavel1
60561
Dec 04, 2014 09:47Cascavel1
Huanggang Mine scheelite color
11
Josele
23480
Jul 21, 2014 17:48GneissWare
Scorodite from Ojuela Mine, Mapimí, Durango... Sulfur Isotope results
5
Peter Megaw
18746
Feb 08, 2014 11:16Peter Megaw
Goethite -not cacoxenite- inclusions in amethyst from Brazil
10
Antonio Alcaide
48498
Jan 22, 2014 10:45cascaillou
Why an organic substance should not be called a mineral?
18
Mike P.
40671
Oct 12, 2013 18:46cascaillou
Perfect replicas of natural crystals?
4
David
15627
May 20, 2013 19:46Josele
What is it?
10
wade
29155
Apr 01, 2013 22:37Perritovm
Azeztulite - Himalaya gold ????
7
Kristen
23081
Sep 12, 2012 08:41Pierre Joubert
The bismuth eggs are they a home grow?
4
trtlman
25542
Jul 12, 2012 12:52Urza
Palladium-rich gold from Icabaru, Venezuela
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24
Cesar M. Salvan
73784
Jul 06, 2012 15:26Leza Junnila
Amethyst Black Agate Sphere
7
thehippi
24821
Jun 05, 2012 14:49cascaillou
Blue Barytes from Baia Sprie (Felsobanya) Mine, Romania
14
GneissWare
32076
Apr 11, 2012 22:07nicu
A fake Chinese cinnabar disclosed
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30
Carles Millan
62546
Jan 21, 2012 06:14Riccardo Modanesi
Detecting Filling with Polymers
3
daviddillman
12285
Jan 06, 2012 12:24cascaillou
List of synthetics and artificial compounds
4
cascaillou
21402
Nov 27, 2011 23:20cascaillou
Hollow Galena from Madan, Bulgaria
17
Jessica Simonoff
44352
Jan 05, 2011 13:38Darren
Are These All Correct?
5
Screenname
17812
May 28, 2010 19:54Screenname
"Red Quartz" and "Celestite"?
1
Jordi Fabre
9554
May 04, 2010 10:27Debbie Woolf
Loliondo spessartine garnet fakes
5
Duncan Miller
14098
Apr 13, 2010 14:08Carles Millan
Fluorite Octahedrons
4
Paul S
15746
Mar 29, 2010 13:58Pete Modreski
It's Funny!
6
Idahorocks
21848
Mar 15, 2010 15:19Pete Modreski
Moved: Wire Silvers from Imiter (Morocco)
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27
FMF Forum
17599
Mar 08, 2010 12:45alfredo
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