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Quartz Twins 6 Bob Carnein 1247 May 08, 2025 17:32Bob Morgan
Ghost dendrite 7 marco campos-venuti 1044 May 03, 2025 11:16Riccardo Modanesi
Libyan Desert Glass Structure 1 , 2 , 3 ] 42 Craig Hagstrom 84457 Apr 29, 2025 11:50Craig Hagstrom
cristobalite vs chalcedony in thin section 1 , 2 ] 16 Daniel Garcia 18404 Apr 09, 2025 13:24marco campos-venuti
Luxullianite - UK 3 Roger Warin 5969 Apr 08, 2025 05:09FMF Forum
Are there sources for identifying odd shaped crystal habits? 3 PegmatiteAppreciator 1994 Mar 26, 2025 08:22Bob Morgan
Location of this amethyst? 3 indigo08 2237 Mar 16, 2025 03:23indigo08
Proustite 4 Padego 2689 Mar 05, 2025 11:14Padego
I think this is Malachite after Barite? thoughts? 8 bob kerr 5942 Feb 23, 2025 17:59bob kerr
Stellerite specimens from Piedra Parada, Mexico 7 John Betts 3665 Feb 21, 2025 12:53John Betts
Need assistance to distinguish the type of this gemstone 2 georgejone414 2588 Jan 30, 2025 22:01Bob Morgan
I want to know the price of the following Ruby 2 georgejone414 2420 Jan 30, 2025 20:05georgejone414
Tanzanite pleochroism 3 Roger Warin 3149 Dec 06, 2024 15:27cascaillou
Lego Rhodochrosite, Amethyst Geode, Black Tourmaline with Aquamarine, Orange Quartz, Emera 10 James Catmur 7418 Dec 06, 2024 14:16cascaillou
Pezzottaite, new specimens 1 Roger Warin 3799 Oct 19, 2024 17:44Pete Richards
Public mining in Oaxaca, Mexico 1 , 2 ] 15 ancientmttreasures 31011 Oct 16, 2024 16:54AndreyWhiteB
Fluorite crystallography? 1 , 2 ] 28 Tobi 121821 Oct 01, 2024 05:15Johan Kjellman
Colors of minerals 7 James Catmur 6055 Sep 18, 2024 10:24James Catmur
Gold nugget formation from earthquake-induced piezoelectricity in quartz 0 Matt_Zukowski 3704 Sep 03, 2024 22:12Matt_Zukowski
Moschellandsbergite / Wow ! 3 Roger Warin 3593 Aug 17, 2024 15:00Roger Warin
Quartz crystal shape 2 marco campos-venuti 3260 Aug 09, 2024 11:09Bob Morgan
Vorobyevite, a 7th variety of beryl 2 Roger Warin 3394 Jul 24, 2024 05:56Riccardo Modanesi
Inclusion of Pezzotaite in Quartz 3 Roger Warin 3651 Jul 08, 2024 15:15Roger Warin
Is Malachite Rare? 3 Matt_Zukowski 4153 Jun 20, 2024 16:24Linus
Is it possible for this specimen of Hyalite to be associated with other minerals? 8 Rick Roan 5763 Jun 01, 2024 20:02alfredo
Mineral identification tips 9 Robson Vieira 6517 Jun 01, 2024 07:40cascaillou
Provide Miller indices in practice please 11 Robson Vieira 10102 May 30, 2024 09:49Robson Vieira
Mystery stone, who knows what it is? 1 Flubbelyte 3773 Apr 17, 2024 16:31Jordi Fabre
Trying to find information on rose/pink quartz and tourmaline associations. 1 , 2 ] 17 Ning 19630 Mar 30, 2024 09:14Amir Akhavan
Mineralogy & Museums 10 - Cardiff - 12th-13th August 2024 0 Roy Starkey 6333 Mar 18, 2024 06:47Roy Starkey
Can you recommend a lab to analyse specimens 1 , 2 ] 29 James Catmur 221550 Mar 12, 2024 07:36Luiz Oliveira
How do calcium carbonate Vaterite and Calcite crystals form? 0 James Catmur 5546 Mar 02, 2024 13:25James Catmur
60th Anniversary of the death of Sir Arthur Russell - Free talk and workshop 0 Roy Starkey 13710 Feb 17, 2024 14:58Roy Starkey
New York State: A Topographic Mineralogy (NEW BOOK) Posted on behalf of Steve Chamberlain 0 Roy Starkey 17589 Dec 11, 2023 16:46Roy Starkey
Nifontovite 8 Roger Warin 10845 Dec 10, 2023 18:26Peter Megaw
Metamict 1 Luiz Oliveira 5544 Dec 03, 2023 07:17Luiz Oliveira
Fluorite Star 3 Roger Warin 8374 Nov 28, 2023 20:06Pete Richards
Le Burc? 8 Chriss 18899 Nov 13, 2023 13:47James Catmur
Pele's Hair and Tears 5 Roger Warin 12108 Sep 27, 2023 06:18James Catmur
New species accepted by the IMA? 10 Roger Warin 19220 Aug 08, 2023 21:55Roger Warin
Minerals of the distant future 4 Tom Mazanec 10709 Aug 05, 2023 09:07Bob Carnein
Garnets in granite pegmatites by Olav Revheim 1 Tobi 7884 Aug 02, 2023 08:35Roger Warin
Quartz: parallel growth or not? 3 Roger Warin 9497 Jul 23, 2023 22:37Roger Warin
"Stain(?)" on Milpillas Azurite specimen 2 bob kerr 9296 Jul 05, 2023 14:37RayStraw
New article discussing the morphological features and oddities in Colombian emerald 1 Fiebre Verde 10313 May 25, 2023 06:55Roger Warin
An idea for a collection 1 , 2 ] 20 Richard Arseneau 27934 May 19, 2023 11:38marco campos-venuti
Azurite to Malachite Chemistry 9 RayStraw 14701 May 05, 2023 21:35Bob Morgan
Tarnish on cubanite 9 Pete Richards 16529 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 20397 Apr 23, 2023 17:02James Catmur
Calcite geode from Idar 2 Roger Warin 5736 Apr 21, 2023 18:27Linus
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