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Last Post
Malachite twinning
5
RayStraw
14238
Mar 08, 2020 06:50RayStraw
Isotopic composition of German Silvers
6
Brent Lockhart
13324
Mar 03, 2020 23:08Brent Lockhart
The State of Modern Geology
14
marvinlewinsky
17850
Feb 21, 2020 01:27Matt_Zukowski
On Mineral collecting and Mineral Provenance
4
marvinlewinsky
12280
Feb 19, 2020 18:56cascaillou
Weird face in quartz
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32
Josele
49834
Feb 06, 2020 11:36Reef
The concept of matrix
8
Josele
15161
Jan 12, 2020 15:17Roger Warin
Clinozoisite... what it is and how was it formed?
2
RockHunter
10158
Dec 16, 2019 03:52RockHunter
Apatite related to the appetite of ungulates.
3
vic rzonca
10613
Dec 02, 2019 16:37alfredo
Color variation in azurite and malachite
10
RayStraw
14640
Nov 05, 2019 14:00RayStraw
Associations.
6
vic rzonca
10820
Oct 21, 2019 11:15Bob Carnein
Posters
7
RayStraw
12357
Aug 21, 2019 09:45Tobi
What defines a collection's quality
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23
cascaillou
34953
Aug 01, 2019 03:02Tobi
Certificates of authenticity for analyzed rare mineral specimens
7
Bob Harman
13167
Jul 29, 2019 20:29alfredo
Colours of Rhodochrosite and Other Mn Bearing Carbonates
9
al mar
12211
Jul 25, 2019 13:41Jordi Fabre
Stability of Azurite vs Malachite
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23
RayStraw
27097
Jun 13, 2019 11:46Peter Megaw
Quartz and Humboldtine? from Colombia
16
John Rakovan
24640
Jun 02, 2019 13:36GregC12345
Stellerite from Mali
3
Gagat Minerals
8766
Mar 28, 2019 18:43Gagat Minerals
Pyrite modified with Diploid-high millers?
4
fena kuiperi
9042
Mar 15, 2019 12:25fena kuiperi
Beryl inclusion
6
tgleckler
9685
Feb 13, 2019 00:35Jordi Fabre
Carmeltazite
11
Pierre Joubert
14098
Jan 21, 2019 13:09Pete Modreski
Collecting focuses and how they can change
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24
Tobi
36503
Dec 05, 2018 04:11Tobi
Rarest quartz twins with inclined axes C
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42
Reef
55418
Nov 09, 2018 18:17Recovering - Academic
Golden rutile analysis?
0
dontgogreen
21354
Nov 02, 2018 13:43dontgogreen
"Frosted patterns" on the faces of Quartz
10
Reef
16279
Oct 01, 2018 16:33Bob Morgan
Termination in a tourmaline crystal
2
marco campos-venuti
6073
Aug 28, 2018 13:13John S. White
Question about Fluorite on Quartz
6
Richard Arseneau
8520
Aug 19, 2018 23:04Robert Seitz
Mindat is in financial trouble.....!?!
4
Peter Lemkin
7865
Aug 18, 2018 03:23Montanpark
Minerals of DR Congo, Katanga.
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27
Roger Warin
48176
Jul 29, 2018 13:52Roger Warin
Help please about swamboite-(Nd) structure
0
Roger Warin
20188
Jul 27, 2018 05:44Roger Warin
Green petrified wood WA State?
6
jenrey1919
9428
Jul 12, 2018 22:17Jeff
Carbonates form on ponds in Oman like ice
6
Matt_Zukowski
10996
Jul 02, 2018 10:28AntonioL
Great website on Quartz and all Quartz growth variants!
1
Peter Lemkin
6664
Apr 12, 2018 05:55kristy
Central Massif of Picos de Europa, Asturias
9
Gagat Minerals
11668
Mar 19, 2018 09:22Gagat Minerals
San Benito County
9
Roger Warin
14087
Mar 18, 2018 11:59JohnVeevaert
Percentage of pigment
6
Tom Mazanec
9508
Mar 15, 2018 05:54Tom Mazanec
A new find: Hoganite from Morocco
17
Manuel Mesa
27204
Feb 28, 2018 12:52alfredo
Minerals and the Origins of Life: the key roles of apatite and struvite
9
Cesar M. Salvan
16931
Jan 12, 2018 00:40Peter Lemkin
Percentage of minerals known
11
Tom Mazanec
14531
Jan 08, 2018 12:02kakov
Minerals sans life
15
Tom Mazanec
18500
Jan 06, 2018 18:38Jordi Fabre
Prospecting pegmatite for schorl: need help.
8
cascaillou
14443
Dec 14, 2017 14:11cascaillou
Mineral names in different languages and their meaning
16
Tobi
20875
Nov 21, 2017 15:22Pete Richards
Questions about microcline
6
Josele
10525
Nov 20, 2017 17:35Josele
Information about a Rhodochrosite specimen
3
Charlotte
8390
Nov 19, 2017 09:30John Cornish
Fluorite habit
5
Josele
9042
Nov 05, 2017 14:49Pete Richards
Help with identification of rock/mineral
6
Mineralien
10959
Oct 23, 2017 13:33Pete Modreski
Alfredopetrovite
10
Jordi Fabre
14011
Oct 21, 2017 16:09Don Lum
Quartz Inclusions
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22
Roger Warin
36403
Oct 16, 2017 13:59zbhjzm
Is Kambaba Jasper a Stromatolite?
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22
Stone Mania
71897
Oct 14, 2017 03:41Stone Mania
Mineral oddities.....well sort of!
2
Bob Harman
6240
Sep 30, 2017 22:43Peter Lemkin
Blue celestine from Madagascar
4
Bob Harman
6912
Sep 29, 2017 16:35kushmeja
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