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Metamict
1
Luiz Oliveira
84
Dec 03, 2023 07:17Luiz Oliveira
Can you recommend a lab to analyse specimens
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26
James Catmur
893
Nov 30, 2023 09:03Luiz Oliveira
Fluorite Star
3
Roger Warin
295
Nov 28, 2023 20:06Pete Richards
Fluorite crystallography?
19
Tobi
906
Nov 28, 2023 13:40Pete Richards
Le Burc?
8
Chriss
784
Nov 13, 2023 13:47James Catmur
Pele's Hair and Tears
5
Roger Warin
2939
Sep 27, 2023 06:18James Catmur
New species accepted by the IMA?
10
Roger Warin
7660
Aug 08, 2023 21:55Roger Warin
Minerals of the distant future
4
Tom Mazanec
4954
Aug 05, 2023 09:07Bob Carnein
Garnets in granite pegmatites by Olav Revheim
1
Tobi
4310
Aug 02, 2023 08:35Roger Warin
Quartz: parallel growth or not?
3
Roger Warin
4843
Jul 23, 2023 22:37Roger Warin
"Stain(?)" on Milpillas Azurite specimen
2
bob kerr
5159
Jul 05, 2023 14:37RayStraw
New article discussing the morphological features and oddities in Colombian emerald
1
Fiebre Verde
6736
May 25, 2023 06:55Roger Warin
An idea for a collection
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20
Richard Arseneau
10473
May 19, 2023 11:38marco campos-venuti
Azurite to Malachite Chemistry
9
RayStraw
6861
May 05, 2023 21:35Bob Morgan
Tarnish on cubanite
9
Pete Richards
7116
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
8829
Apr 23, 2023 17:02James Catmur
Calcite geode from Idar
2
Roger Warin
2255
Apr 21, 2023 18:27Linus
Problem with identification
6
mineralowitz
3916
Mar 29, 2023 10:17Bob Carnein
A very strange specimen of Hardin Co., Illinois
6
k-m.minerals
4522
Mar 17, 2023 00:52k-m.minerals
Azurite to Malachite pseudomorphs
0
RayStraw
6646
Feb 26, 2023 17:50RayStraw
Mineral Labeling: how to properly acknowledge specimen is from an earlier collection
7
Frank Perry
3714
Feb 24, 2023 04:07James Catmur
Diamond pseudomorphs after graphite
8
James Catmur
3878
Feb 22, 2023 05:12James Catmur
Galena Spinel law
8
John Hodgson
4267
Feb 13, 2023 03:55Tobi
Can alpha radiation from titanite, zircon, etc. affect other mineral specimens?
4
Garret
2893
Feb 10, 2023 19:05Amir Akhavan
Elbaite from Pala ?
1
Roger Warin
2302
Feb 05, 2023 23:43Jesse Fisher
Unique Schorl Double Terminations
19
bob kerr
7939
Jan 26, 2023 15:42Roger Warin
About the tourmaline twin
6
Roger Warin
4540
Jan 07, 2023 10:50Pete Richards
Oxidation of Copper, Lead, and Zinc sulfides and transport below the surface
4
RayStraw
3583
Jan 04, 2023 15:22Pete Modreski
Shielding effect of pyrite solid inclusions in a Colombian emerald crystal
1
Fiebre Verde
2526
Dec 26, 2022 05:55James Catmur
Minerals to be found in only one location
10
David
5486
Dec 08, 2022 15:03lluis
Zunyite from Canada
6
Roger Warin
3875
Nov 30, 2022 12:54alfredo
How hard is it to find a new mineral species?
10
David
4754
Nov 27, 2022 14:37Roger Warin
A new mineral species: pendevilleite
2
Roger Warin
3030
Nov 23, 2022 15:32Roger Warin
First 100 IUGS Geological Heritage Sites
7
James Catmur
4455
Nov 05, 2022 01:58Philippe Durand
Philip Rashleigh’s Mineral Collection at the Royal Cornwall Museum and Why It Is Important
5
Roy Starkey
4689
Sep 28, 2022 16:31Roy Starkey
Calcite is acting strange under UV
11
Forrestblyth
6173
Aug 08, 2022 22:33alfredo
Question about Rutile, Brookite and Anatase
4
Paul Biehler
3975
Jul 22, 2022 09:42Paul Biehler
Nature used 57 recipes to create Earth's ~10,500+ minerals!
1
Peter Lemkin
3188
Jul 03, 2022 11:46Peter Lemkin
Spherical inclusions in amethyst - cristobalite? vs fluorite
15
Amir Akhavan
7356
Jun 30, 2022 14:20Roger Warin
Red fluorescence in Fluorite
13
Bob Carnein
11841
Jun 29, 2022 08:43Bob Carnein
Crystallography question
6
Bob Carnein
3660
Jun 17, 2022 14:53Bob Carnein
Elbaite, ending moor's head
9
Roger Warin
5279
Jun 11, 2022 18:31Johan Kjellman
How long does it take for a crystal to form?
13
h.abbasi
6180
Jun 04, 2022 00:38Peter Lemkin
Es -Semara Chalcedony
4
Amir Akhavan
3068
May 26, 2022 07:36Bob Morgan
Calcite in Malkhan elbaite
8
Roger Warin
4000
May 19, 2022 14:00Roger Warin
Help with mineral identification in thin section from Khibiny, Kola peninsula
6
Daniel Garcia
3538
May 16, 2022 08:20Daniel Garcia
Tourmaline - Quartz epitaxy?
7
Josele
4273
Apr 24, 2022 09:01Josele
Forms Involved in Titanite Crystal
19
Josele
9892
Apr 22, 2022 14:58marco campos-venuti
Unusual habit for Pyrite.
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28
Sante Celiberti
11298
Mar 25, 2022 19:25Bob Morgan
Conoscopy of elbaite
0
Roger Warin
6824
Mar 14, 2022 09:19Roger Warin
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