radioactive mineral photos.. post them!!

No clue what this one is, but I like it.

uranophane from Grants NM

Marthozite on selenium-rich digenite from the Musonoi Mine. Specimen dimensions are 2.5 x 3 x 0.8cm with the largest complete marthozite crystal measuring 4mm. Minor amounts of green microcrystalline metatorbernite are also present.

Alan






Edited 1 time(s). Last edit at 05/17/2011 09:12AM by Pavel Kartashov.

Thorite




Edited 2 time(s). Last edit at 05/17/2011 09:12AM by Pavel Kartashov.

Brown Monazite in blue cleavelandite.From the Morefield Mine,Amelia Virginia,USA.Slightly radioactive.

Reiner and I did some collecting at the Kemp Prospect near Bancroft this weekend. We found a vug and uncovered these rather ugly thorite crystals. There is a second shot showing the site here - [www.mindat.org]

You know how in the mineral ads they say "photos don't do the specimen justice"? Well, in this case, the photo looks MUCH better than the real thing. They are one ugly bunch of minerals! Lumpy, mishapen, covered with warty -looking diopside crystals - very grotesque. We left them behind in a nice little pile for the next visitor.

Hey Maggie!

You can send those thorite crystals my way. I will work my magic on them. B)-

And to me, and to me!!!X(

Tiny but well developed Metatorbernite from Rýžoviště near Harrachov in Czech Republic. Collected in July 2011.

Most of these are quite small but fairly rare...



















Edited 1 time(s). Last edit at 08/04/2011 09:06AM by Liam Schofield.

Here is one. Sorry for the poor quality of the picture. Purchased as "microlite"from a dealer in Brazil. However, I think not. I still haven't had it analyzed, yet. I also can't find reference to the locality given as Mina do Chorao, Brazil. Dimensions: 3.9cm x 3.1cm x 1.5cm. I was wondering about something like fergusonite. Any Ideas?

:D>:D< Turd collection!! Thats great Rudy. I have a similar turd collection from the linkpot cut in east hampton, CT, also Allanite
-Rowan

I don't know what it is exactly. In my oppinion it is some new Albrechtschraufite-like mineral. Igor Pekov decide that it is Rabbittite.
Material from [www.mindat.org] was collected this May and it is really nice! Megascopicaly the mineral is very similar to the best ferrymolybdite.





Edited 1 time(s). Last edit at 08/04/2011 04:23PM by Pavel Kartashov.

Pavel, those look really cool- almost asbestos-like.

Donald, I have not seen anything similar and I have not heard about Mina do Chorao; where have you bought it, in Minas Gerais, Rio Grande do Norte or Paraíba?; do you remember who was the dealer?

Luiz

Luiz,

This was from a dealer when we were in Rio Grande do Norte and this mine is probably also in Rio Grande do Norte. I unfortunately do not recall the name of the dealer. His shop was only a small garage, but he had some interesting things, columbite-tantalite from various localities, microlite and this specimen, plus the more usual pegmatite minerals. A couple other localities for columbite-tantalite I couldn't find reference to were: Mina de Pedreira, Mina de Tico Igem and Minerio Preto. Here is also a "pyrochlore supergroup" mineral they had from Mina Manael Sabino. Dimensions: 19.7mm x 18.0mm x 15.8mm.

-Don

It looks like a great microlite.

This one is for you Pavel!
Nioboaeschynite-(Ce), Upper Fir carbonatite, Kamloops Mining Division, British Columbia, Canada, 5.9cm x 4.2cm x 3.0cm.

How hot it is?

They are mildly radioactive. I know that is relative, but I can give you a specific reading later today, if you are interested. However, some specimens are more effected more by the presence of uranpyrochlore, which is far more radioactive.

5000 c.p.m. with Ludlum 3 plus 44-9 pancake GM probe.