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Newest topics and users posts
03 Dec-04:45:26 Re: collection of michael shaw (James Catmur)
03 Dec-03:02:41 Re: hardin or elmwood fluorite? (Tobi)
02 Dec-17:39:50 Re: hardin or elmwood fluorite? (Jordi Fabre)
02 Dec-15:00:51 Re: collection of michael shaw (Michael Shaw)
02 Dec-12:21:29 Re: hardin or elmwood fluorite? (Juan Roberto Rivera)
02 Dec-11:32:38 Re: collection of michael shaw (James Catmur)
02 Dec-10:08:36 Re: collection of michael shaw (Michael Shaw)
02 Dec-04:07:54 Re: hardin or elmwood fluorite? (James Catmur)
02 Dec-00:14:35 Re: collection of volkmar stingl (Volkmar Stingl)
01 Dec-20:34:06 Re: hardin or elmwood fluorite? (Juan Roberto Rivera)
01 Dec-20:12:14 Re: hardin or elmwood fluorite? (Matt_zukowski)
01 Dec-10:18:34 Re: hardin or elmwood fluorite? (Juan Roberto Rivera)
01 Dec-10:17:05 Hardin or elmwood fluorite? (Juan Roberto Rivera)
01 Dec-09:14:21 Re: lego rhodochrosite, amethyst geode, black tourmaline with aquamarine, orange quartz, e (Juan Roberto Rivera)
01 Dec-09:11:12 Re: lego rhodochrosite, amethyst geode, black tourmaline with aquamarine, orange quartz, e (Juan Roberto Rivera)
30 Nov-00:46:53 Re: collection of volkmar stingl (Volkmar Stingl)
29 Nov-17:09:03 The mizunaka collection - quartz (Am Mizunaka)
29 Nov-10:12:19 Re: collection of michael shaw - crocoite (Michael Shaw)
28 Nov-05:07:29 Re: can't read / decode this label to identify the fluorite location... (Andyh)
28 Nov-04:02:27 Re: can't read / decode this label to identify the fluorite location... (Caf2_4_me)
27 Nov-15:47:59 Re: can't read / decode this label to identify the fluorite location... (Lluis)
27 Nov-10:26:05 Re: collection of volkmar stingl (Volkmar Stingl)
27 Nov-10:00:29 Re: can't read / decode this label to identify the fluorite location... (Tobi)
27 Nov-09:56:49 Tanzanite pleochroism (Roger Warin)
26 Nov-23:19:21 The mizunaka collection - fluorite (Am Mizunaka)

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  Topic: Lego Rhodochrosite, Amethyst Geode, Black Tourmaline with Aquamarine, Orange Quartz, Emera
Peter Megaw

Replies: 9
Views: 1379

PostForum: Minerals and Mineralogy   Posted: Nov 21, 2024 09:48   Subject: Re: Lego Rhodochrosite, Amethyst Geode, Black Tourmaline with Aquamarine, Orange Quartz, E
Lego says it is not official yet, so cannot be displayed until it is
  Topic: Lego Rhodochrosite, Amethyst Geode, Black Tourmaline with Aquamarine, Orange Quartz, Emera
Peter Megaw

Replies: 9
Views: 1379

PostForum: Minerals and Mineralogy   Posted: Nov 20, 2024 13:47   Subject: Re: Lego Rhodochrosite, Amethyst Geode, Black Tourmaline with Aquamarine, Orange Quartz, E
Does anyone know how to get ahold of the guy/gal behind this?
Make a great exhibit for TGMS
  Topic: Where is this amethyst from?
Peter Megaw

Replies: 4
Views: 1049

PostForum: What is it? - Where is it from?   Posted: Nov 06, 2024 10:46   Subject: Re: Where is this amethyst from?
clearly from a vein deposit. ...very likely Guanajuato, Mexico
  Topic: Galena from Hiendelaencina
Peter Megaw

Replies: 8
Views: 1900

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Oct 02, 2024 10:46   Subject: Re: Galena from Hiendelaencina
With those overgrowths it looks more like Tri-State/Old Lead Belt (Kansas?) rather than Viburnum. Doesn't look right for the Baxter Mine, but possibly ha neighborhood
  Topic: An interesting Colorado "Gold Specimen" Story
Peter Megaw

Replies: 1
Views: 2524

PostForum: Incorrect classification and fakes   Posted: Jun 19, 2024 10:14   Subject: Re: An interesting Colorado "Gold Specimen" Story
Great piece Bob...I think I can fill a few gaps in the story...

Shortly after I first moved to Tucson in 1979, Richard opened Bideaux Minerals on the north side of Miracle Mile, just west of the Gh ...
  Topic: In memoriam - George Robinson, a man of science, passed away
Peter Megaw

Replies: 3
Views: 3432

PostForum: In Memoriam   Posted: Apr 23, 2024 17:44   Subject: Re: In memoriam - George Robinson, a man of science, passed away
Knew George for many years...still have a cute Thunder Bay amethyst I got from them back when they were digging and dealing.

Didn't know about the Ragtime though...LOVE it!

One by one time mar ...
  Topic: Locality?
Peter Megaw

Replies: 5
Views: 2845

PostForum: What is it? - Where is it from?   Posted: Apr 14, 2024 07:32   Subject: Re: Locality?
Ask Bill Dameron...Barite Bill!
  Topic: Are there any big mineral shows in canada?
Peter Megaw

Replies: 5
Views: 4272

PostForum: Mineral Shows   Posted: Mar 10, 2024 09:15   Subject: Re: Are there any big mineral shows in canada?
Biggest I know of is the Bancroft Show....lots of self collectors
  Topic: Fluorite locality
Peter Megaw

Replies: 6
Views: 3210

PostForum: What is it? - Where is it from?   Posted: Feb 16, 2024 18:53   Subject: Re: Fluorite locality
Agreed...the calcite on the fluorite and the character of the sphalerite matrix scream Elmwood
  Topic: Can anyone tell me if this is Stellar Beam Calciite?
Peter Megaw

Replies: 8
Views: 3312

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Feb 14, 2024 18:34   Subject: Re: Can anyone tell me if this is Stellar Beam Calciite?
Agreed on the silliness Alfredo!...but I couldn't resist Googling "Stellar Beam Calcite". All hocus-pocus aside that term appears to apply to calcite from Elmwood, so this piece qualifies. ...
  Topic: Please Help Me To Identify This Stone.
Peter Megaw

Replies: 17
Views: 8362

PostForum: FOR BEGINNERS: What is it? Where is it from?   Posted: Dec 16, 2023 08:41   Subject: Re: Please Help Me To Identify This Stone.
With that much Thorium it should be quite hot...

Unless this is some outrageous variety of something like Calzirtite, if the numbers are real I suspect an industrial product of some kind
  Topic: Nifontovite
Peter Megaw

Replies: 8
Views: 6721

PostForum: Minerals and Mineralogy   Posted: Dec 10, 2023 18:26   Subject: Re: Nifontovite
Great pictures Roger...love those second order colors!

Not sure which tourmaline group member you're calculating those percentages from, but
what about Quingsongite BN which I think runs 44% B b ...
  Topic: Nifontovite
Peter Megaw

Replies: 8
Views: 6721

PostForum: Minerals and Mineralogy   Posted: Dec 09, 2023 17:04   Subject: Re: Nifontovite
Roger...The Charcas skarns are a series of "scabs" plastered on the sides of an intrusion about 1.5 km in diameter. They wrap around about half of its circumference but are not continuous. ...
  Topic: Nifontovite
Peter Megaw

Replies: 8
Views: 6721

PostForum: Minerals and Mineralogy   Posted: Dec 09, 2023 14:24   Subject: Re: Nifontovite
Interesting species from an interesting skarn system dominated by boron silicates...danburite probably comprises 80% of the gangue. The abundance of boron at Charcas may indicate that there are borate ...
  Topic: Fluorite crystallography?
Peter Megaw

Replies: 28
Views: 100148

PostForum: Minerals and Mineralogy   Posted: Nov 27, 2023 10:13   Subject: Re: Fluorite crystallography?
Tobi...could I get high-rez versions of these images with permission to publish? I am working on an article on Naica and these are worth considering for inclusion.
  Topic: Fluorite crystallography?
Peter Megaw

Replies: 28
Views: 100148

PostForum: Minerals and Mineralogy   Posted: Nov 27, 2023 10:12   Subject: Re: Fluorite crystallography?
Nice fluorites Tobi! Classic Naica.

A high percentage of Naica fluorites show this combination of the cube (001) and octahedron (111)...commonly called a cube-octahedron...or cube-octahedral.
...
  Topic: Le Burc?
Peter Megaw

Replies: 8
Views: 15417

PostForum: Minerals and Mineralogy   Posted: Nov 13, 2023 13:00   Subject: Re: Le Burc?
I'm no expert on these, but the blue does not look right for Le Burc
  Topic: American quartz without label
Peter Megaw

Replies: 4
Views: 10184

PostForum: What is it? - Where is it from?   Posted: Jul 08, 2023 12:58   Subject: Re: American quartz without label
A very long time ago I collected quartz very much like this from an outcrop across from the Pride of the West Mine in the Silverton Colorado area. The black stuff was not easy to get off.
  Topic: An idea for a collection
Peter Megaw

Replies: 20
Views: 20236

PostForum: Minerals and Mineralogy   Posted: May 11, 2023 07:51   Subject: Re: An idea for a collection
At least 2 museums have set up exhibits based on Hazen and Co's work on Mineral Evolution. One is at the new University of Arizona Alfie Norville Mineral and Gem Museum, this exhibit traces mineral e ...
  Topic: A very strange specimen of Hardin Co., Illinois
Peter Megaw

Replies: 6
Views: 8005

PostForum: Minerals and Mineralogy   Posted: Mar 13, 2023 09:20   Subject: Re: A very strange specimen of Hardin Co., Illinois
I love mineralized fossils and this is great example with a cool story to tell. We tend to focus on the big deposits, but often small occurrences yield some of the better curiosities! You sent me to t ...
 
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