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Newest topics and users posts
08 May-17:32:48 Re: quartz twins (Bob Morgan)
07 May-23:40:44 Re: quartz twins (Herwig)
07 May-17:07:55 The mizunaka collection - smoky quartz (Am Mizunaka)
07 May-15:10:39 Re: quartz twins (Roger Warin)
07 May-14:13:54 Re: collection of michael shaw (James Catmur)
07 May-10:22:14 Re: collection of michael shaw - quartz ps. After barite (Michael Shaw)
07 May-09:39:53 Re: quartz twins (Bob Carnein)
07 May-08:22:46 Re: quartz twins (Pete Richards)
06 May-23:47:28 Re: collection of volkmar stingl (Volkmar Stingl)
06 May-15:58:27 Tricolour tourmaline from madagascar / mvm (minerals - virtual museum) collection (Jordi Fabre)
06 May-15:25:14 Re: carlos pareja photo collection (Carlos Pareja)
06 May-15:20:01 Re: carlos pareja photo collection (Carlos Pareja)
06 May-09:58:11 Re: the mim museum in beirut, lebanon (Mim Museum)
06 May-07:05:10 Re: martin danovski minerals collection (Danovskim)
05 May-22:27:21 Re: quartz twins (Bob Morgan)
05 May-16:13:09 The mizunaka collection - rhodochrosite (Am Mizunaka)
05 May-13:07:52 Elbaite (variety paraíba) from brazil / mvm (minerals - virtual museum) collection (Jordi Fabre)
05 May-12:41:15 Quartz twins (Bob Carnein)
05 May-08:26:19 Re: collection of michael shaw (Michael Shaw)
04 May-16:39:42 Brochantite from milpillas mine, mexico / mvm (minerals - virtual museum) collection (Jordi Fabre)
03 May-23:23:09 Re: collection of volkmar stingl (Volkmar Stingl)
03 May-17:21:53 Re: martin danovski minerals collection (Jordi Fabre)
03 May-11:16:02 Re: ghost dendrite (Riccardo Modanesi)
03 May-05:51:59 Re: ghost dendrite (James Catmur)
03 May-04:17:02 Re: ghost dendrite (Marco Campos-venuti)

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  Topic: Treatments, Synthetics and Simulants: FLUORITE
cascaillou

Replies: 0
Views: 4586

PostForum: Incorrect classification and fakes   Posted: Mar 11, 2025 11:02   Subject: Treatments, Synthetics and Simulants: FLUORITE
A brief overview of what would be possible with fluorite:

TREATMENTS:

As for any mineral specimens, one might consider the possibility of specimen repairs or even fabrications (i.e. crystals glu ...
  Topic: The Mineralogical Records - (49)
cascaillou

Replies: 10
Views: 18099

PostForum: Featured Columns of FMF   Posted: Feb 22, 2025 19:02   Subject: Re: The Mineralogical Records - (49)
For electronic music composers, here's a synthesizer module using uranium ore and a geiger counter...

https://www.nervoussquirrel.com/ore-some_volts.html

Idea being to implement randomization th ...
  Topic: Tanzanite pleochroism
cascaillou

Replies: 3
Views: 3050

PostForum: Minerals and Mineralogy   Posted: Dec 06, 2024 15:27   Subject: Re: Tanzanite pleochroism
Sure, I'd be interested in reading this article (sent you a pm)
  Topic: Lego Rhodochrosite, Amethyst Geode, Black Tourmaline with Aquamarine, Orange Quartz, Emera
cascaillou

Replies: 10
Views: 7305

PostForum: Minerals and Mineralogy   Posted: Dec 06, 2024 14:16   Subject: Re: Lego Rhodochrosite, Amethyst Geode, Black Tourmaline with Aquamarine, Orange Quartz, E
Yeah, it's great news that Lego will finally release such a set :-)

For more geology/mineralogy related toys, here's the christmas topic I had created on mindat:

https://www.mindat.org/mesg-3663 ...
  Topic: Tanzanite pleochroism
cascaillou

Replies: 3
Views: 3050

PostForum: Minerals and Mineralogy   Posted: Dec 06, 2024 13:52   Subject: Re: Tanzanite pleochroism
In a general way, if you can find the three colors of trichroism (blue / purple to magenta / yellowish to yellowish-brown or greenish), then you can say it is unheated.
  Topic: The Mineralogical Records - (49)
cascaillou

Replies: 10
Views: 18099

PostForum: Featured Columns of FMF   Posted: Jul 15, 2024 12:21   Subject: Re: The Mineralogical Records - (49)
I thought I should share that one: I usually collect only vinyl records, but this is one CD that still made it to my collection, because it was special.
It is from a music label called Time Released ...
  Topic: The Mineralogical Records - (49)
cascaillou

Replies: 10
Views: 18099

PostForum: Featured Columns of FMF   Posted: Jul 15, 2024 10:13   Subject: Re: The Mineralogical Records - (49)
To keep going with paleontology, here's a blog about vinyl records created by a british paleontologist: https://thefossilrecords.weebly.com/home/welcome
  Topic: The Mineralogical Records - (49)
cascaillou

Replies: 10
Views: 18099

PostForum: Featured Columns of FMF   Posted: Jul 15, 2024 09:55   Subject: Re: The Mineralogical Records - (49)
What were the odds that two of your specimens would end up on a record cover, as a collector of such records I think that's very cool.
But why not ask them for a free copy then...

Concerning the ...
  Topic: The Mineralogical Records - (49)
cascaillou

Replies: 10
Views: 18099

PostForum: Featured Columns of FMF   Posted: Jul 15, 2024 09:07   Subject: Re: The Mineralogical Records - (49)
Carles, I just realized that actually two of your minerals ended up on a vinyl record cover! That baryte from Cerro Warihuyn is yours too!
You can really say that, just like movies, your collection h ...
  Topic: The Mineralogical Records - (49)
cascaillou

Replies: 10
Views: 18099

PostForum: Featured Columns of FMF   Posted: Jul 15, 2024 07:55   Subject: Re: The Mineralogical Records - (49)
Their live performance must certainly be worth it. This is a really good album, the music is just as cool as the cover!

Speaking of building bridges between music and geology, here's a fun ongoing ...
  Topic: The Mineralogical Records - (49)
cascaillou

Replies: 10
Views: 18099

PostForum: Featured Columns of FMF   Posted: Jul 14, 2024 12:21   Subject: The Mineralogical Records - (49)
Building a bridge between Music and Mineralogy!

Or, when my passion for minerals eventually met my love of music through a collection of geology themed musical releases.

Hereinafter are gathered ...
  Topic: Mineral identification tips
cascaillou

Replies: 9
Views: 6441

PostForum: Minerals and Mineralogy   Posted: Jun 01, 2024 07:40   Subject: Re: Mineral identification tips
If the crystal is loose (i.e. free of any matrix and without associated minerals) and not too small (weighing at least 3g) , then you may measure specific gravity using a scale with 0.01g accuracy. In ...
  Topic: Fun with mineralogy
cascaillou

Replies: 6
Views: 16102

PostForum: Off-Topic and Introductions   Posted: Apr 03, 2022 08:55   Subject: Re: Fun with mineralogy
deleted
  Topic: Fun with mineralogy
cascaillou

Replies: 6
Views: 16102

PostForum: Off-Topic and Introductions   Posted: Mar 30, 2022 08:37   Subject: Re: Fun with mineralogy
The list of mineralogy and geology related music and records has been updated. Here are a few highlights:


Let's start with some indie rock from the vinyl album "Ores & Minerals" by ...
  Topic: Virtual shows: what's the concept?
cascaillou

Replies: 3
Views: 9462

PostForum: Mineral Shows   Posted: Jun 20, 2021 14:06   Subject: Re: Virtual shows: what's the concept?
Thanks for your explanations everyone.
 
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