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Stellerite specimens from Piedra Parada, Mexico
8
John Betts
4662
Jul 08, 2025 13:17John Betts
Some rare phosphates from the Democratic Republic of Congo and Zimbabwe
3
Roger Warin
642
Jul 03, 2025 13:28Roger Warin
Libyan Desert Glass Structure
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60
Craig Hagstrom
92241
Jul 02, 2025 10:23Craig Hagstrom
Gwindel Skutterudite?
3
marco campos-venuti
543
Jun 30, 2025 12:07marco campos-venuti
Are there sources for identifying odd shaped crystal habits?
4
PegmatiteAppreciator
2794
Jun 26, 2025 17:17cascaillou
Quartz Twins
6
Bob Carnein
2595
May 08, 2025 17:32Bob Morgan
Ghost dendrite
7
marco campos-venuti
2200
May 03, 2025 11:16Riccardo Modanesi
cristobalite vs chalcedony in thin section
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16
Daniel Garcia
21407
Apr 09, 2025 13:24marco campos-venuti
Luxullianite - UK
3
Roger Warin
6520
Apr 08, 2025 05:09FMF Forum
Location of this amethyst?
3
indigo08
2982
Mar 16, 2025 03:23indigo08
Proustite
4
Padego
3432
Mar 05, 2025 11:14Padego
I think this is Malachite after Barite? thoughts?
8
bob kerr
6868
Feb 23, 2025 17:59bob kerr
Need assistance to distinguish the type of this gemstone
2
georgejone414
2992
Jan 30, 2025 22:01Bob Morgan
I want to know the price of the following Ruby
2
georgejone414
2722
Jan 30, 2025 20:05georgejone414
Tanzanite pleochroism
3
Roger Warin
3564
Dec 06, 2024 15:27cascaillou
Lego Rhodochrosite, Amethyst Geode, Black Tourmaline with Aquamarine, Orange Quartz, Emera
10
James Catmur
7948
Dec 06, 2024 14:16cascaillou
Pezzottaite, new specimens
1
Roger Warin
4059
Oct 19, 2024 17:44Pete Richards
Public mining in Oaxaca, Mexico
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15
ancientmttreasures
31989
Oct 16, 2024 16:54AndreyWhiteB
Fluorite crystallography?
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28
Tobi
123015
Oct 01, 2024 05:15Johan Kjellman
Colors of minerals
7
James Catmur
6500
Sep 18, 2024 10:24James Catmur
Gold nugget formation from earthquake-induced piezoelectricity in quartz
0
Matt_Zukowski
4539
Sep 03, 2024 22:12Matt_Zukowski
Moschellandsbergite / Wow !
3
Roger Warin
3897
Aug 17, 2024 15:00Roger Warin
Quartz crystal shape
2
marco campos-venuti
3705
Aug 09, 2024 11:09Bob Morgan
Vorobyevite, a 7th variety of beryl
2
Roger Warin
3806
Jul 24, 2024 05:56Riccardo Modanesi
Inclusion of Pezzotaite in Quartz
3
Roger Warin
3919
Jul 08, 2024 15:15Roger Warin
Is Malachite Rare?
3
Matt_Zukowski
4467
Jun 20, 2024 16:24Linus
Is it possible for this specimen of Hyalite to be associated with other minerals?
8
Rick Roan
6218
Jun 01, 2024 20:02alfredo
Mineral identification tips
9
Robson Vieira
6932
Jun 01, 2024 07:40cascaillou
Provide Miller indices in practice please
11
Robson Vieira
10669
May 30, 2024 09:49Robson Vieira
Mystery stone, who knows what it is?
1
Flubbelyte
4031
Apr 17, 2024 16:31Jordi Fabre
Trying to find information on rose/pink quartz and tourmaline associations.
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17
Ning
20741
Mar 30, 2024 09:14Amir Akhavan
Mineralogy & Museums 10 - Cardiff - 12th-13th August 2024
0
Roy Starkey
6769
Mar 18, 2024 06:47Roy Starkey
Can you recommend a lab to analyse specimens
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29
James Catmur
297245
Mar 12, 2024 07:36Luiz Oliveira
How do calcium carbonate Vaterite and Calcite crystals form?
0
James Catmur
5946
Mar 02, 2024 13:25James Catmur
60th Anniversary of the death of Sir Arthur Russell - Free talk and workshop
0
Roy Starkey
14504
Feb 17, 2024 14:58Roy Starkey
New York State: A Topographic Mineralogy (NEW BOOK) Posted on behalf of Steve Chamberlain
0
Roy Starkey
18053
Dec 11, 2023 16:46Roy Starkey
Nifontovite
8
Roger Warin
11304
Dec 10, 2023 18:26Peter Megaw
Metamict
1
Luiz Oliveira
5799
Dec 03, 2023 07:17Luiz Oliveira
Fluorite Star
3
Roger Warin
8684
Nov 28, 2023 20:06Pete Richards
Le Burc?
8
Chriss
19286
Nov 13, 2023 13:47James Catmur
Pele's Hair and Tears
5
Roger Warin
12493
Sep 27, 2023 06:18James Catmur
New species accepted by the IMA?
10
Roger Warin
19749
Aug 08, 2023 21:55Roger Warin
Minerals of the distant future
4
Tom Mazanec
10977
Aug 05, 2023 09:07Bob Carnein
Garnets in granite pegmatites by Olav Revheim
1
Tobi
8073
Aug 02, 2023 08:35Roger Warin
Quartz: parallel growth or not?
3
Roger Warin
11672
Jul 23, 2023 22:37Roger Warin
"Stain(?)" on Milpillas Azurite specimen
2
bob kerr
9582
Jul 05, 2023 14:37RayStraw
New article discussing the morphological features and oddities in Colombian emerald
1
Fiebre Verde
10551
May 25, 2023 06:55Roger Warin
An idea for a collection
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20
Richard Arseneau
28694
May 19, 2023 11:38marco campos-venuti
Azurite to Malachite Chemistry
9
RayStraw
15203
May 05, 2023 21:35Bob Morgan
Tarnish on cubanite
9
Pete Richards
17012
Apr 24, 2023 14:20Roger Warin
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