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Libyan Desert Glass Structure
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45
Craig Hagstrom
89250
Jun 10, 2025 21:28Craig Hagstrom
Quartz Twins
6
Bob Carnein
2086
May 08, 2025 17:32Bob Morgan
Ghost dendrite
7
marco campos-venuti
1874
May 03, 2025 11:16Riccardo Modanesi
cristobalite vs chalcedony in thin section
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16
Daniel Garcia
20872
Apr 09, 2025 13:24marco campos-venuti
Luxullianite - UK
3
Roger Warin
6339
Apr 08, 2025 05:09FMF Forum
Are there sources for identifying odd shaped crystal habits?
3
PegmatiteAppreciator
2410
Mar 26, 2025 08:22Bob Morgan
Location of this amethyst?
3
indigo08
2729
Mar 16, 2025 03:23indigo08
Proustite
4
Padego
3235
Mar 05, 2025 11:14Padego
I think this is Malachite after Barite? thoughts?
8
bob kerr
6576
Feb 23, 2025 17:59bob kerr
Stellerite specimens from Piedra Parada, Mexico
7
John Betts
4237
Feb 21, 2025 12:53John Betts
Need assistance to distinguish the type of this gemstone
2
georgejone414
2853
Jan 30, 2025 22:01Bob Morgan
I want to know the price of the following Ruby
2
georgejone414
2620
Jan 30, 2025 20:05georgejone414
Tanzanite pleochroism
3
Roger Warin
3398
Dec 06, 2024 15:27cascaillou
Lego Rhodochrosite, Amethyst Geode, Black Tourmaline with Aquamarine, Orange Quartz, Emera
10
James Catmur
7782
Dec 06, 2024 14:16cascaillou
Pezzottaite, new specimens
1
Roger Warin
3964
Oct 19, 2024 17:44Pete Richards
Public mining in Oaxaca, Mexico
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15
ancientmttreasures
31575
Oct 16, 2024 16:54AndreyWhiteB
Fluorite crystallography?
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28
Tobi
122603
Oct 01, 2024 05:15Johan Kjellman
Colors of minerals
7
James Catmur
6341
Sep 18, 2024 10:24James Catmur
Gold nugget formation from earthquake-induced piezoelectricity in quartz
0
Matt_Zukowski
4303
Sep 03, 2024 22:12Matt_Zukowski
Moschellandsbergite / Wow !
3
Roger Warin
3798
Aug 17, 2024 15:00Roger Warin
Quartz crystal shape
2
marco campos-venuti
3567
Aug 09, 2024 11:09Bob Morgan
Vorobyevite, a 7th variety of beryl
2
Roger Warin
3665
Jul 24, 2024 05:56Riccardo Modanesi
Inclusion of Pezzotaite in Quartz
3
Roger Warin
3820
Jul 08, 2024 15:15Roger Warin
Is Malachite Rare?
3
Matt_Zukowski
4330
Jun 20, 2024 16:24Linus
Is it possible for this specimen of Hyalite to be associated with other minerals?
8
Rick Roan
6062
Jun 01, 2024 20:02alfredo
Mineral identification tips
9
Robson Vieira
6768
Jun 01, 2024 07:40cascaillou
Provide Miller indices in practice please
11
Robson Vieira
10486
May 30, 2024 09:49Robson Vieira
Mystery stone, who knows what it is?
1
Flubbelyte
3953
Apr 17, 2024 16:31Jordi Fabre
Trying to find information on rose/pink quartz and tourmaline associations.
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17
Ning
20287
Mar 30, 2024 09:14Amir Akhavan
Mineralogy & Museums 10 - Cardiff - 12th-13th August 2024
0
Roy Starkey
6645
Mar 18, 2024 06:47Roy Starkey
Can you recommend a lab to analyse specimens
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29
James Catmur
296592
Mar 12, 2024 07:36Luiz Oliveira
How do calcium carbonate Vaterite and Calcite crystals form?
0
James Catmur
5831
Mar 02, 2024 13:25James Catmur
60th Anniversary of the death of Sir Arthur Russell - Free talk and workshop
0
Roy Starkey
14275
Feb 17, 2024 14:58Roy Starkey
New York State: A Topographic Mineralogy (NEW BOOK) Posted on behalf of Steve Chamberlain
0
Roy Starkey
17899
Dec 11, 2023 16:46Roy Starkey
Nifontovite
8
Roger Warin
11144
Dec 10, 2023 18:26Peter Megaw
Metamict
1
Luiz Oliveira
5692
Dec 03, 2023 07:17Luiz Oliveira
Fluorite Star
3
Roger Warin
8574
Nov 28, 2023 20:06Pete Richards
Le Burc?
8
Chriss
19154
Nov 13, 2023 13:47James Catmur
Pele's Hair and Tears
5
Roger Warin
12324
Sep 27, 2023 06:18James Catmur
New species accepted by the IMA?
10
Roger Warin
19568
Aug 08, 2023 21:55Roger Warin
Minerals of the distant future
4
Tom Mazanec
10892
Aug 05, 2023 09:07Bob Carnein
Garnets in granite pegmatites by Olav Revheim
1
Tobi
8014
Aug 02, 2023 08:35Roger Warin
Quartz: parallel growth or not?
3
Roger Warin
11564
Jul 23, 2023 22:37Roger Warin
"Stain(?)" on Milpillas Azurite specimen
2
bob kerr
9469
Jul 05, 2023 14:37RayStraw
New article discussing the morphological features and oddities in Colombian emerald
1
Fiebre Verde
10468
May 25, 2023 06:55Roger Warin
An idea for a collection
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20
Richard Arseneau
28457
May 19, 2023 11:38marco campos-venuti
Azurite to Malachite Chemistry
9
RayStraw
15059
May 05, 2023 21:35Bob Morgan
Tarnish on cubanite
9
Pete Richards
16864
Apr 24, 2023 14:20Roger Warin
What should we do with our collections? Special event on Zoom - Wednesday 19 April 20:00 B
12
Roy Starkey
20768
Apr 23, 2023 17:02James Catmur
Calcite geode from Idar
2
Roger Warin
5890
Apr 21, 2023 18:27Linus
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