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How long does it take for a crystal to form?
13
h.abbasi
8406
Jun 04, 2022 00:38Peter Lemkin
Es -Semara Chalcedony
4
Amir Akhavan
4167
May 26, 2022 07:36Bob Morgan
Calcite in Malkhan elbaite
8
Roger Warin
5220
May 19, 2022 14:00Roger Warin
Help with mineral identification in thin section from Khibiny, Kola peninsula
6
Daniel Garcia
4797
May 16, 2022 08:20Daniel Garcia
Tourmaline - Quartz epitaxy?
7
Josele
5614
Apr 24, 2022 09:01Josele
Forms Involved in Titanite Crystal
19
Josele
12342
Apr 22, 2022 14:58marco campos-venuti
Unusual habit for Pyrite.
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28
Sante Celiberti
13730
Mar 25, 2022 19:25Bob Morgan
Conoscopy of elbaite
0
Roger Warin
11507
Mar 14, 2022 09:19Roger Warin
Martian minerals
1
James Catmur
2586
Mar 05, 2022 06:08SteveB
Epitaxial rutile
19
Josele
38198
Feb 27, 2022 18:28Bob Morgan
Russell Society Monthly Virtual Talk by James Catmur – A guide to Spanish e-mineralogy
4
Roy Starkey
3995
Feb 14, 2022 14:32Jordi Fabre
Two questions on Bolivian danburite
8
Antonio Alcaide
11434
Nov 14, 2021 14:54vhairap
All the Diamonds one could fill your house with - and more - so near...yet so far.....
10
Peter Lemkin
14376
Nov 13, 2021 00:15Peter Lemkin
James Madison University Mineral Museum
0
John S. White
13111
Nov 07, 2021 10:19John S. White
Conditions where pyrite/pyritohedra are formed
16
LDMarks
12508
Oct 12, 2021 15:49Sante Celiberti
Just how fast can the crystals we love and collect grow?!
5
Peter Lemkin
5819
Oct 05, 2021 06:44Peter Lemkin
About calaverite from Creeple Creek
2
Roger Warin
4499
Oct 03, 2021 13:53Roger Warin
Malachite stalactites, Katanga Province
2
Roger Warin
3739
Sep 18, 2021 05:25Jordi Fabre
Ajoite From Messina
3
Roger Warin
3974
Aug 27, 2021 22:45Roger Warin
Mineral spirituality?
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29
Tracy
31323
Aug 27, 2021 01:28Peter Lemkin
Rarest beautifully crystallized minerals
4
David
5538
Aug 17, 2021 08:15Jordi Fabre
Tsumeb - Deposit of dioptase on calcite.
3
Roger Warin
4641
Aug 04, 2021 18:39SteveB
Tsumeb Zincolivenite association - light blue acicular mineral = ?
3
cfrench58
3781
Aug 04, 2021 14:51Jordi Fabre
A new mineral: alpha-calcium formate
9
Cesar M. Salvan
9410
May 06, 2021 09:55Cesar M. Salvan
Calcite form
6
Josele
5578
Apr 26, 2021 11:17Josele
Synthetic smoky quartz?
11
Fraxinus
6814
Apr 12, 2021 11:08Amir Akhavan
Creedite - Is Pink Different than Purple, Navidad Mine (Mina Navidad)
9
Julie Wilson
7913
Mar 10, 2021 20:48alfredo
Betafo habit?
5
Sante Celiberti
5157
Feb 20, 2021 17:03Amir Akhavan
Comparison between 2 microscopes
0
Roger Warin
10539
Feb 16, 2021 15:41Roger Warin
Pyrite with bubble-like growths
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21
Pete Richards
15949
Jan 19, 2021 17:42Roger Warin
Proposed new system for classifying minerals
15
Don Lum
11235
Jan 07, 2021 11:01Don Lum
Luxullianite - UK
1
Roger Warin
3578
Jan 03, 2021 10:04Pete Modreski
Hunan China Calcite with Marcasite
5
John Hodgson
5824
Dec 17, 2020 20:35Bob Morgan
New mineral has been named kernowite, after the Cornish word for Cornwall
1
James Catmur
4409
Dec 12, 2020 14:28James Catmur
Minerals toxicity: Where can I find information?
12
Olivier
10259
Dec 12, 2020 10:18cascaillou
Why this fluorapatite is purple?
11
Luis Domínguez
17978
Dec 11, 2020 02:04Peter Lemkin
I'm seeking more information on Kara Oba, are any Japan Law twins from there??
0
Bob Morgan
7706
Dec 04, 2020 17:35Bob Morgan
Cylindrical calcite crystal?
5
Sante Celiberti
6229
Nov 26, 2020 23:39shravigunjal
Odd textures on this large beryl
10
RussEpp
8884
Nov 25, 2020 15:37RussEpp
Iceland Spar Discontinuity
8
Josele
7316
Nov 14, 2020 12:47Bob Morgan
Unusual bar pyrite from Nanisivik
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21
RussEpp
14808
Oct 31, 2020 09:49RussEpp
Very steep rhombohedral calcite?
14
Josele
13652
Oct 27, 2020 19:37RussEpp
Idiomorphic ruby crystal
0
Roger Warin
5656
Oct 23, 2020 16:22Roger Warin
Perovskites
4
Jayanth Kenway
4112
Oct 12, 2020 08:22James Catmur
Odd modifications on a cubic pyrite.
10
Sante Celiberti
8041
Aug 22, 2020 13:49Sante Celiberti
Habit restriction of garnets
13
Josele
14641
Jul 26, 2020 16:10Sante Celiberti
Complex calcite
7
Josele
9647
Jun 25, 2020 08:13Bob Morgan
Mercedes cross in fluorite
9
Roger Warin
9618
Jun 22, 2020 15:01Roger Warin
Pyrite scepters?
8
Sante Celiberti
10813
Apr 25, 2020 17:46Sante Celiberti
Aragonite "drill bit" twin
16
Bob Carnein
19706
Apr 01, 2020 13:57Bob Morgan
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