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Libyan Desert Glass Structure
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50
Craig Hagstrom
90233
Jun 30, 2025 14:52Craig Hagstrom
Gwindel Skutterudite?
3
marco campos-venuti
279
Jun 30, 2025 12:07marco campos-venuti
Some rare phosphates from the Democratic Republic of Congo and Zimbabwe
1
Roger Warin
150
Jun 30, 2025 03:02Knut Eldjarn
Are there sources for identifying odd shaped crystal habits?
4
PegmatiteAppreciator
2660
Jun 26, 2025 17:17cascaillou
Quartz Twins
6
Bob Carnein
2357
May 08, 2025 17:32Bob Morgan
Ghost dendrite
7
marco campos-venuti
2077
May 03, 2025 11:16Riccardo Modanesi
cristobalite vs chalcedony in thin section
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16
Daniel Garcia
21156
Apr 09, 2025 13:24marco campos-venuti
Luxullianite - UK
3
Roger Warin
6421
Apr 08, 2025 05:09FMF Forum
Location of this amethyst?
3
indigo08
2887
Mar 16, 2025 03:23indigo08
Proustite
4
Padego
3332
Mar 05, 2025 11:14Padego
I think this is Malachite after Barite? thoughts?
8
bob kerr
6738
Feb 23, 2025 17:59bob kerr
Stellerite specimens from Piedra Parada, Mexico
7
John Betts
4415
Feb 21, 2025 12:53John Betts
Need assistance to distinguish the type of this gemstone
2
georgejone414
2925
Jan 30, 2025 22:01Bob Morgan
I want to know the price of the following Ruby
2
georgejone414
2663
Jan 30, 2025 20:05georgejone414
Tanzanite pleochroism
3
Roger Warin
3468
Dec 06, 2024 15:27cascaillou
Lego Rhodochrosite, Amethyst Geode, Black Tourmaline with Aquamarine, Orange Quartz, Emera
10
James Catmur
7864
Dec 06, 2024 14:16cascaillou
Pezzottaite, new specimens
1
Roger Warin
4002
Oct 19, 2024 17:44Pete Richards
Public mining in Oaxaca, Mexico
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15
ancientmttreasures
31757
Oct 16, 2024 16:54AndreyWhiteB
Fluorite crystallography?
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28
Tobi
122770
Oct 01, 2024 05:15Johan Kjellman
Colors of minerals
7
James Catmur
6401
Sep 18, 2024 10:24James Catmur
Gold nugget formation from earthquake-induced piezoelectricity in quartz
0
Matt_Zukowski
4413
Sep 03, 2024 22:12Matt_Zukowski
Moschellandsbergite / Wow !
3
Roger Warin
3847
Aug 17, 2024 15:00Roger Warin
Quartz crystal shape
2
marco campos-venuti
3634
Aug 09, 2024 11:09Bob Morgan
Vorobyevite, a 7th variety of beryl
2
Roger Warin
3717
Jul 24, 2024 05:56Riccardo Modanesi
Inclusion of Pezzotaite in Quartz
3
Roger Warin
3857
Jul 08, 2024 15:15Roger Warin
Is Malachite Rare?
3
Matt_Zukowski
4387
Jun 20, 2024 16:24Linus
Is it possible for this specimen of Hyalite to be associated with other minerals?
8
Rick Roan
6130
Jun 01, 2024 20:02alfredo
Mineral identification tips
9
Robson Vieira
6847
Jun 01, 2024 07:40cascaillou
Provide Miller indices in practice please
11
Robson Vieira
10576
May 30, 2024 09:49Robson Vieira
Mystery stone, who knows what it is?
1
Flubbelyte
3987
Apr 17, 2024 16:31Jordi Fabre
Trying to find information on rose/pink quartz and tourmaline associations.
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17
Ning
20499
Mar 30, 2024 09:14Amir Akhavan
Mineralogy & Museums 10 - Cardiff - 12th-13th August 2024
0
Roy Starkey
6696
Mar 18, 2024 06:47Roy Starkey
Can you recommend a lab to analyse specimens
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29
James Catmur
296948
Mar 12, 2024 07:36Luiz Oliveira
How do calcium carbonate Vaterite and Calcite crystals form?
0
James Catmur
5888
Mar 02, 2024 13:25James Catmur
60th Anniversary of the death of Sir Arthur Russell - Free talk and workshop
0
Roy Starkey
14374
Feb 17, 2024 14:58Roy Starkey
New York State: A Topographic Mineralogy (NEW BOOK) Posted on behalf of Steve Chamberlain
0
Roy Starkey
17979
Dec 11, 2023 16:46Roy Starkey
Nifontovite
8
Roger Warin
11233
Dec 10, 2023 18:26Peter Megaw
Metamict
1
Luiz Oliveira
5763
Dec 03, 2023 07:17Luiz Oliveira
Fluorite Star
3
Roger Warin
8636
Nov 28, 2023 20:06Pete Richards
Le Burc?
8
Chriss
19212
Nov 13, 2023 13:47James Catmur
Pele's Hair and Tears
5
Roger Warin
12376
Sep 27, 2023 06:18James Catmur
New species accepted by the IMA?
10
Roger Warin
19640
Aug 08, 2023 21:55Roger Warin
Minerals of the distant future
4
Tom Mazanec
10936
Aug 05, 2023 09:07Bob Carnein
Garnets in granite pegmatites by Olav Revheim
1
Tobi
8042
Aug 02, 2023 08:35Roger Warin
Quartz: parallel growth or not?
3
Roger Warin
11629
Jul 23, 2023 22:37Roger Warin
"Stain(?)" on Milpillas Azurite specimen
2
bob kerr
9533
Jul 05, 2023 14:37RayStraw
New article discussing the morphological features and oddities in Colombian emerald
1
Fiebre Verde
10508
May 25, 2023 06:55Roger Warin
An idea for a collection
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20
Richard Arseneau
28543
May 19, 2023 11:38marco campos-venuti
Azurite to Malachite Chemistry
9
RayStraw
15121
May 05, 2023 21:35Bob Morgan
Tarnish on cubanite
9
Pete Richards
16944
Apr 24, 2023 14:20Roger Warin
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