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FMF - Friends of Minerals Forum, discussion and message board
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Newest topics and users posts
04 Jul-09:52:35 Re: the mim museum in beirut, lebanon (Mim Museum)
04 Jul-04:35:07 Re: silvia's collection (Herwig)
04 Jul-03:56:03 Re: silvia's collection (James Catmur)
03 Jul-22:42:04 The mizunaka collection - fluorite (Am Mizunaka)
03 Jul-15:16:58 Re: collection of michael shaw (Michael Shaw)
03 Jul-13:28:16 Re: some rare phosphates from the democratic republic of congo and zimbabwe (Roger Warin)
03 Jul-11:14:11 Re: collection of michael shaw (Carles Millan)
03 Jul-10:12:23 Re: collection of michael shaw (Michael Shaw)
02 Jul-17:01:48 Some facts about uranium minerals (Silvia)
02 Jul-16:59:28 Uraninite on the alligator (Silvia)
02 Jul-16:40:02 The forgotten mines (Silvia)
02 Jul-16:04:59 The mizunaka collection - spessartine (Am Mizunaka)
02 Jul-14:07:28 Re: collection of michael shaw (Michael Shaw)
02 Jul-13:38:52 Cuprite on calcite from congo d. R. / #mvm (minerals - virtual museum) collection (Jordi Fabre)
02 Jul-10:23:30 Re: libyan desert glass structure (Craig Hagstrom)
02 Jul-10:06:48 Re: libyan desert glass structure (Marco Campos-venuti)
02 Jul-09:29:48 Re: libyan desert glass structure (Craig Hagstrom)
02 Jul-09:12:17 Re: libyan desert glass structure (Marco Campos-venuti)
02 Jul-09:02:38 Re: libyan desert glass structure (Craig Hagstrom)
02 Jul-08:49:56 Re: libyan desert glass structure (Marco Campos-venuti)
02 Jul-06:09:25 Re: libyan desert glass structure (James Catmur)
01 Jul-14:47:07 Re: libyan desert glass structure (Alfredo)
01 Jul-09:55:00 Re: libyan desert glass structure (Craig Hagstrom)
01 Jul-05:05:41 Re: libyan desert glass structure (Roger Warin)
01 Jul-01:07:57 The mizunaka collection - elbaite (Am Mizunaka)

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  Topic: Are there sources for identifying odd shaped crystal habits?
cascaillou

Replies: 4
Views: 2715

PostForum: Minerals and Mineralogy   Posted: Jun 26, 2025 17:17   Subject: Re: Are there sources for identifying odd shaped crystal habits?
I'd suggest checking Goldschmidt's Atlas der Krystallformen (available online as pdf)
  Topic: Treatments, Synthetics and Simulants: FLUORITE
cascaillou

Replies: 0
Views: 5548

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: 19701

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: 3513

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: 7895

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: 3513

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: 19701

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: 19701

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: 19701

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: 19701

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: 19701

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: 19701

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: 6890

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: 16343

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: 16343

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 ...
 
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