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Pseudomorph chemistry
0
RayStraw
68
Aug 13, 2022 12:21RayStraw
Calcite is acting strange under UV
11
Forrestblyth
599
Aug 08, 2022 22:33alfredo
Question about Rutile, Brookite and Anatase
4
Paul Biehler
753
Jul 22, 2022 09:42Paul Biehler
Nature used 57 recipes to create Earth's ~10,500+ minerals!
1
Peter Lemkin
566
Jul 03, 2022 11:46Peter Lemkin
Spherical inclusions in amethyst - cristobalite? vs fluorite
15
Amir Akhavan
2103
Jun 30, 2022 14:20Roger Warin
Red fluorescence in Fluorite
13
Bob Carnein
6587
Jun 29, 2022 08:43Bob Carnein
Crystallography question
6
Bob Carnein
784
Jun 17, 2022 14:53Bob Carnein
Elbaite, ending moor's head
9
Roger Warin
1518
Jun 11, 2022 18:31Johan Kjellman
How long does it take for a crystal to form?
13
h.abbasi
1261
Jun 04, 2022 00:38Peter Lemkin
Es -Semara Chalcedony
4
Amir Akhavan
746
May 26, 2022 07:36Bob Morgan
Calcite in Malkhan elbaite
8
Roger Warin
979
May 19, 2022 14:00Roger Warin
Help with mineral identification in thin section from Khibiny, Kola peninsula
6
Daniel Garcia
829
May 16, 2022 08:20Daniel Garcia
Tourmaline - Quartz epitaxy?
7
Josele
1249
Apr 24, 2022 09:01Josele
Forms Involved in Titanite Crystal
19
Josele
3681
Apr 22, 2022 14:58marco campos-venuti
Unusual habit for Pyrite.
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28
Sante Celiberti
3557
Mar 25, 2022 19:25Bob Morgan
Conoscopy of elbaite
0
Roger Warin
601
Mar 14, 2022 09:19Roger Warin
Martian minerals
1
James Catmur
784
Mar 05, 2022 06:08SteveB
Epitaxial rutile
19
Josele
29553
Feb 27, 2022 18:28Bob Morgan
Russell Society Monthly Virtual Talk by James Catmur – A guide to Spanish e-mineralogy
4
Roy Starkey
1227
Feb 14, 2022 14:32Jordi Fabre
Two questions on Bolivian danburite
8
Antonio Alcaide
7154
Nov 14, 2021 14:54vhairap
All the Diamonds one could fill your house with - and more - so near...yet so far.....
10
Peter Lemkin
9846
Nov 13, 2021 00:15Peter Lemkin
James Madison University Mineral Museum
0
John S. White
1647
Nov 07, 2021 10:19John S. White
Conditions where pyrite/pyritohedra are formed
16
LDMarks
5798
Oct 12, 2021 15:49Sante Celiberti
Just how fast can the crystals we love and collect grow?!
5
Peter Lemkin
2858
Oct 05, 2021 06:44Peter Lemkin
About calaverite from Creeple Creek
2
Roger Warin
2105
Oct 03, 2021 13:53Roger Warin
Malachite stalactites, Katanga Province
2
Roger Warin
1854
Sep 18, 2021 05:25Jordi Fabre
Ajoite From Messina
3
Roger Warin
2007
Aug 27, 2021 22:45Roger Warin
Mineral spirituality?
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29
Tracy
21518
Aug 27, 2021 01:28Peter Lemkin
Rarest beautifully crystallized minerals
4
David
3342
Aug 17, 2021 08:15Jordi Fabre
Tsumeb - Deposit of dioptase on calcite.
3
Roger Warin
2383
Aug 04, 2021 18:39SteveB
Tsumeb Zincolivenite association - light blue acicular mineral = ?
3
cfrench58
1713
Aug 04, 2021 14:51Jordi Fabre
A new mineral: alpha-calcium formate
9
Cesar M. Salvan
4320
May 06, 2021 09:55Cesar M. Salvan
Calcite form
6
Josele
2844
Apr 26, 2021 11:17Josele
Synthetic smoky quartz?
11
Fraxinus
3851
Apr 12, 2021 11:08Amir Akhavan
Creedite - Is Pink Different than Purple, Navidad Mine (Mina Navidad)
9
Julie Wilson
4424
Mar 10, 2021 20:48alfredo
Betafo habit?
5
Sante Celiberti
2986
Feb 20, 2021 17:03Amir Akhavan
Comparison between 2 microscopes
0
Roger Warin
2532
Feb 16, 2021 15:41Roger Warin
Pyrite with bubble-like growths
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21
Pete Richards
9803
Jan 19, 2021 17:42Roger Warin
Proposed new system for classifying minerals
15
Don Lum
7329
Jan 07, 2021 11:01Don Lum
Luxullianite - UK
1
Roger Warin
2495
Jan 03, 2021 10:04Pete Modreski
Hunan China Calcite with Marcasite
5
John Hodgson
4071
Dec 17, 2020 20:35Bob Morgan
New mineral has been named kernowite, after the Cornish word for Cornwall
1
James Catmur
3127
Dec 12, 2020 14:28James Catmur
Minerals toxicity: Where can I find information?
12
Olivier
6707
Dec 12, 2020 10:18cascaillou
Why this fluorapatite is purple?
11
Luis Domínguez
14441
Dec 11, 2020 02:04Peter Lemkin
I'm seeking more information on Kara Oba, are any Japan Law twins from there??
0
Bob Morgan
3001
Dec 04, 2020 17:35Bob Morgan
Cylindrical calcite crystal?
5
Sante Celiberti
4016
Nov 26, 2020 23:39shravigunjal
Odd textures on this large beryl
10
RussEpp
5529
Nov 25, 2020 15:37RussEpp
Iceland Spar Discontinuity
8
Josele
4532
Nov 14, 2020 12:47Bob Morgan
Unusual bar pyrite from Nanisivik
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21
RussEpp
8316
Oct 31, 2020 09:49RussEpp
Very steep rhombohedral calcite?
14
Josele
7578
Oct 27, 2020 19:37RussEpp
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