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Newest topics and users posts
16 Jan-08:33:31 Re: apophyllite from brazil - a new find from 2021? (Gagat Minerals)
15 Jan-22:46:01 Re: tucson shows 2022 - it's starting!! (Alfredo)
15 Jan-22:29:08 Re: tucson shows 2022 - it's starting!! (Bob Harman)
15 Jan-22:23:43 Re: apophyllite from brazil - a new find from 2021? (Alfredo)
15 Jan-22:19:22 The mizunaka collection - thin quartz (Am Mizunaka)
15 Jan-19:31:17 Apophyllite from brazil - a new find from 2021? (Gagat Minerals)
15 Jan-18:40:57 Re: alleged 'silvers' from udokan? (Bob Harman)
15 Jan-17:48:47 Tucson shows 2022 (Bob Kerr)
15 Jan-17:32:21 Re: alleged 'silvers' from udokan? (Alfredo)
15 Jan-16:52:31 Re: alleged 'silvers' from udokan? (Bob Harman)
15 Jan-16:23:26 Re: collection of michael shaw (Michael Shaw)
15 Jan-16:21:55 Chalcostibite - silvia's collection (Silvia)
15 Jan-14:22:05 Re: collection of sante celiberti (Sante Celiberti)
15 Jan-13:19:53 Re: alleged 'silvers' from udokan? (Jordi Fabre)
15 Jan-13:11:33 Re: alleged 'silvers' from udokan? (Jordi Fabre)
15 Jan-12:59:38 Re: collection of volkmar stingl (Volkmar Stingl)
14 Jan-17:42:03 Re: collection of firmo espinar (Firmo Espinar)
14 Jan-07:48:15 Re: collection of enrique llorens (Enrique Llorens)
14 Jan-07:36:53 Re: collection of enrique llorens (Jose Luis Jara Jara)
14 Jan-07:13:50 Re: collection of enrique llorens (Enrique Llorens)
14 Jan-01:49:47 Re: monthly mineral chronicles, mineral guides and more... (Crocoite)
13 Jan-18:53:08 Re: collection of enrique llorens (Silvia)
13 Jan-15:31:28 Re: the mizunaka collection - quartz (Am Mizunaka)
13 Jan-12:47:07 Re: collection of enrique llorens (Enrique Llorens)
13 Jan-04:55:05 Re: the mizunaka collection - quartz (James Catmur)

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  Topic: Melanophlogite?
Luiz Oliveira

Replies: 11
Views: 3659

PostForum: What is it? - Where is it from?   Posted: Jul 30, 2021 14:58   Subject: Re: Melanophlogite?
Good afternoon! After analyzing with the microscope the rocks I presented, I was able to highlight the orthorrhobic crystals! Therefore the photographs presented in this discussion refer to cordierita ...
  Topic: Fósseis
Luiz Oliveira

Replies: 4
Views: 1543

PostForum: Off-Topic and Introductions   Posted: May 17, 2021 04:14   Subject: Re: Fósseis
This forum is for minerals, not fossils. So we cannot help (even though some of us speak Portuguese)
Ok, James! Mas Dana classifica a Melanoflogita como um mineral! Eu gostaria de saber se você pode ...
  Topic: Fósseis
Luiz Oliveira

Replies: 4
Views: 1543

PostForum: Off-Topic and Introductions   Posted: May 16, 2021 18:14   Subject: Fósseis
Fósseis celulares
  Topic: Melanophlogite?
Luiz Oliveira

Replies: 11
Views: 3659

PostForum: What is it? - Where is it from?   Posted: Apr 09, 2021 10:26   Subject: Re: Melanophlogite?
Tenho outras amostras! Mas o que me chama muito a atenção, é quando após lapidar no disco de corte as pedras ficam escuras no polimento! Li que a Melanoflogita fica preta quando aquecida! E essa crist ...
  Topic: Melanophlogite?
Luiz Oliveira

Replies: 11
Views: 3659

PostForum: What is it? - Where is it from?   Posted: Apr 07, 2021 13:55   Subject: Re: Melanophlogite?
My hypothesis is that it’s a beta cristobalite who’s been metamorphosed into Melanoflogite!


A minha hipótese é que seja uma cristobalita beta que sofreu metamorfose para Melanoflogita!
  Topic: Melanophlogite?
Luiz Oliveira

Replies: 11
Views: 3659

PostForum: What is it? - Where is it from?   Posted: Apr 07, 2021 13:50   Subject: Re: Melanophlogite?
Estou mandando uma foto melhor!
  Topic: Melanophlogite?
Luiz Oliveira

Replies: 11
Views: 3659

PostForum: What is it? - Where is it from?   Posted: Apr 07, 2021 13:20   Subject: Re: Melanophlogite?
Boa tarde! Eu tentei usar o google tradutor, porém a tradução não foi fidedigna ao meu texto original! Espero a compreensão de todos! Mas além de me indicarem um laboratório, alguém mais pode dar sua ...
  Topic: Melanophlogite?
Luiz Oliveira

Replies: 11
Views: 3659

PostForum: What is it? - Where is it from?   Posted: Apr 06, 2021 17:24   Subject: Re: Melanophlogite?
Eu já havia pesquisado no mindad! Porém não consegui boa elucidação! Acredito que a dificuldade está no tamanho dos cristais que são pequenos para fazer cálculo de gravidade específica!
  Topic: Melanophlogite?
Luiz Oliveira

Replies: 11
Views: 3659

PostForum: What is it? - Where is it from?   Posted: Apr 06, 2021 14:38   Subject: Melanophlogite?
Gostaria de informações sobre a Melanoflogita! Tenho umas amostras que parecem ser opala, cristobalita, Melanoflogita, calcedônia, cordierita! Isto, porque são rochas(bombas vulcânicas)! Quando cálcul ...
 
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