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Education

For education topics/questions 
Subject Posts Last Post

Adularia growing inside smokey quartz!?

by Theodore Hansen Theo
5 01/08/2018 02:23PM
Last Post by Theodore Hansen Theo

Midwest carbonates, both common and very rare.

by Bob Harman
12 01/06/2018 03:55PM
Last Post by Keith Wood

Strange Malachite formation Attachments

by Dennis Curtis
5 01/02/2018 03:25PM
Last Post by Dennis Curtis

Enhydros in large amethyst cluster? Attachments

by Theodore Hansen Theo
4 01/02/2018 04:54AM
Last Post by Theodore Hansen Theo

Charoite Pietersite

by Dennis Curtis
7 12/31/2017 01:46PM
Last Post by Dennis Curtis

Hematite on Malachite Attachments

by Dennis Curtis
1 12/31/2017 01:17AM
Last Post by Dennis Curtis

Beryl, a glucinum-aluminum silicate?

by Ed Clopton
13 12/30/2017 05:12PM
Last Post by Clifford Trebilcock

dirty diamond identification

by JASTRO jerry WINKLE
2 12/30/2017 12:54PM
Last Post by JASTRO jerry WINKLE

Specimen Degradation Attachments

by Edward Bayley
6 12/20/2017 12:31AM
Last Post by Edward Bayley

Swedish mineral name challenge

by Van King
9 12/18/2017 10:07PM
Last Post by Chris Stone

Bytownite - industrial uses?

by Duncan Hill
7 12/12/2017 05:11PM
Last Post by Duncan Hill

Technical terminology of surface modifications to crystals

by Edward Bayley
8 12/09/2017 03:00PM
Last Post by Edward Bayley
This topic has been moved.

Boulder opal? Attachments

by brittany messer
  This topic has been moved.

Lodestone locales?

by jennifer cindrich
18 12/03/2017 02:43PM
Last Post by Ed Clopton

Erythrite on grey metallic matrix from Bou Azer

by John Sobolewski
7 12/02/2017 10:21PM
Last Post by Reiner Mielke

What is the most common mineral on Earth?

by Bob Harman
9 12/02/2017 09:44PM
Last Post by Ralph Bottrill

Star Quartz/s?

by Theodore Hansen Theo
9 12/02/2017 09:34PM
Last Post by Ralph Bottrill

Finding An Old Prospect Site

by Ryan Klockner
2 12/02/2017 12:49AM
Last Post by Stuart Herring

Irradiation ? Attachments

by Luc Boulad
11 11/30/2017 05:43PM
Last Post by Owen Lewis

Iron sulphide nodules Attachments

by Jason Evans
16 11/29/2017 04:00PM
Last Post by Reiner Mielke

Your opinion about Austrian "geomaterials"

by Franz Bernhard
17 11/19/2017 12:59PM
Last Post by Franz Bernhard

specific gravity/ hardness question for mineral

by Matt Courville
12 11/13/2017 12:05PM
Last Post by Reiner Mielke
This topic has been moved.

Fake azurite? Attachments

by Ashley Wolf
  This topic has been moved.

POTD: November 10, 2017

by Norman King
1 11/10/2017 02:54AM
Last Post by Norman King

Best way to extract/generally clean up pyrite? Attachments

by Greg Hill
3 11/08/2017 03:45PM
Last Post by Greg Hill

Mass vs Weight

by Owen Lewis
40 11/03/2017 03:25AM
Last Post by Doug Daniels

Crystal system of autunite group minerals

by Noah Horwitz
6 11/02/2017 02:05PM
Last Post by Uwe Kolitsch

Another interesting and difficult concept.

by Bob Harman
12 10/28/2017 02:58PM
Last Post by Norman King

POTD: calcite twin: additional photo ?

by Herwig Pelckmans
1 10/19/2017 11:23AM
Last Post by Herwig Pelckmans

Asbestos, Galena and Cinnabar in my collection.

by Andrei M.
45 10/19/2017 05:09AM
Last Post by Crystal Pringle

Kabamba Jasper from Tsiroanomandidy Madagascar

by Stone Mania
2 10/18/2017 11:55AM
Last Post by Knut Edvard Larsen

What mineral has the most elements?

by Jason Evans
17 10/17/2017 08:22PM
Last Post by László Horváth

Geological Society of America Annual Conference

by Paul Brandes
5 10/15/2017 12:46AM
Last Post by Paul Brandes

What defines a "Dana locality"?

by Ed Clopton
17 10/14/2017 02:02PM
Last Post by Harold Moritz

POTD: Cinnabar crystal shape

by Herwig Pelckmans
8 10/12/2017 01:59PM
Last Post by Harold Moritz

obtaining Miller indices from d-values?

by Herwig Pelckmans
10 10/11/2017 05:00AM
Last Post by Herwig Pelckmans
This topic has been moved.

What kind of rock is this? Attachments

by Kundi Lamo
  This topic has been moved.

Bumble Bee "Jasper" Attachments

by Kristi Hugs
23 09/28/2017 03:37PM
Last Post by Douglas Schonewald

Selenite Gypsum VS Satin Spar Gypsum

by Dawn Markus
14 09/21/2017 08:49AM
Last Post by Dawn Markus

Value of Geodes Attachments

by Wendy Christopher
7 09/21/2017 12:29AM
Last Post by Kevin Conroy

World's most powerful X-ray laser goes on-line.

by Owen Lewis
2 09/15/2017 05:58PM
Last Post by Emily John

Growing selenite crystals

by Jack Brooks
11 09/01/2017 07:32AM
Last Post by Uwe Kolitsch

How can 2 different crystals with identical symmetry have different forms?

by Ben S
3 08/30/2017 01:30PM
Last Post by Dana Morong

Possibly interested in studying minerology? Dont know where to start!

by Silas Gantt
15 08/30/2017 08:59AM
Last Post by Riccardo Modanesi

What would cause lustre variation amongst quartz clusters?

by Christina Dimos
3 08/29/2017 04:01PM
Last Post by Rob Woodside

link to rough gemstones

by Scott Wilson Mr.
7 08/22/2017 09:49PM
Last Post by Scott Wilson Mr.

Karpathos island

by Petr Fuchs
4 08/22/2017 12:46PM
Last Post by Owen Lewis
This topic has been moved.

Atacamite without origin. Attachments

by Luc Boulad
  This topic has been moved.

Tridymite ?? Attachments

by Costas Constantinides
8 08/13/2017 03:30PM
Last Post by Douglas Schonewald
This topic has been moved.

anyone know where to find minerals near Columbus Ohio?

by connor caffrey
  This topic has been moved.

Hi Forum!

by Dona Nguyen
1 07/27/2017 03:13AM
Last Post by Dona Nguyen

"Tanzanite" Fluorite from Fujian, China Attachments

by Brian Greenstone
12 07/24/2017 03:49PM
Last Post by Jolyon & Katya Ralph

Quartz variety Attachments

by Costas Constantinides
10 07/23/2017 07:08PM
Last Post by Uwe Kolitsch

Is Ochre (Ocher?) Considered a Mineral, or a Mix of Minerals?

by Jonelle DeFelice
10 07/13/2017 09:09PM
Last Post by Alysson Rowan

Blister Copper

by Paul De Bondt
4 07/11/2017 06:28PM
Last Post by Paul Brandes

Can a mineral contain two colors of the same mineral? Attachments

by Kristi Hugs
17 07/07/2017 12:49PM
Last Post by Becky Coulson

Proper Names

by Kristi Hugs
29 07/07/2017 08:58AM
Last Post by Alysson Rowan

Dendrite formation in Fluorite? Attachments

by Kristi Hugs
10 06/26/2017 10:27PM
Last Post by Kristi Hugs

La Marina Mine, Mun. de Pauna, Boyacá Department, Colombia

by Milton Dye
1 06/25/2017 07:44PM
Last Post by Milton Dye

Southeast Missouri Barite District, USA

by Kevin Conroy
2 06/17/2017 10:42PM
Last Post by Bob Harman
This topic has been moved.

Cligga head cornwall

by Chris Annis
  This topic has been moved.

Minerals in Glassmaking

by Cheryl Herr
20 06/13/2017 12:45AM
Last Post by Gregg Little

Oiling Cavansite

by John Arnaud
14 06/11/2017 07:59PM
Last Post by Wayne Corwin

Black Kyanite- A real Kyanite? or Actinolite? Attachments

by Kristi Hugs
13 06/11/2017 06:58PM
Last Post by Kristi Hugs

Angelite, Celestite not the same? or?

by Kristi Hugs
9 06/11/2017 06:56PM
Last Post by Kristi Hugs

Gitterquartz aka lattice quartz or fence quartz

by Kristi Hugs
5 05/29/2017 04:04PM
Last Post by Ed Clopton

What happened here? Attachments

by Eddy Vervloet
15 05/17/2017 07:24PM
Last Post by Uwe Kolitsch

“Alteration products” of pollucite

by Giuliano Bettini
6 05/15/2017 11:15PM
Last Post by Łukasz Kruszewski

look at what i found at indian rocks beach Attachments

by JACKIE DUKE
6 05/04/2017 08:57PM
Last Post by Gregg Little

Mineral lab. in United States

by Herby Lam
2 05/02/2017 02:10AM
Last Post by Paul Brandes

Treatments, Synthetics and Simulants: QUARTZ & CHALCEDONY

by cascaillou
12 04/26/2017 11:47AM
Last Post by Owen Lewis

The 5 Forms of Azurite

by Peter K. Szarka
1 04/25/2017 11:05PM
Last Post by Peter K. Szarka

Ferruginous Quartz

by Kristi Hugs
11 04/22/2017 11:54PM
Last Post by Alfredo Petrov

Shipping radioactive minerals

by Reiner Mielke
71 04/16/2017 08:24PM
Last Post by Brian Eisemann

Rocks and Minerals Magazine Cover Attachments

by Jamison K. Brizendine
8 04/13/2017 03:49PM
Last Post by Jamison K. Brizendine

Emerald in Fuchsite? Attachments

by Kristi Hugs
7 04/12/2017 03:50PM
Last Post by Kristi Hugs

Children's chapter book about minerals

by Ryan Miles
1 04/10/2017 09:20PM
Last Post by Ryan Miles

Fluorite - Uncommon Form Attachments

by Owen Lewis
54 04/06/2017 12:17PM
Last Post by Harold Moritz

Time crystals

by Reiner Mielke
12 04/05/2017 12:54PM
Last Post by Nelse Miller

AN OVERVIEW OF MINERALS TOXICITY

by cascaillou
21 04/02/2017 07:09PM
Last Post by cascaillou



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