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Newest topics and users posts
25 Oct-23:04:53 Re: please help identify the composition of this granite (Matt_zukowski)
25 Oct-22:00:38 Please help identify the composition of this granite (Tsaintonge)
25 Oct-20:10:22 Re: silvia's collection - schorl/dravite panasqueira (Am Mizunaka)
25 Oct-17:59:29 Re: silvia's collection - schorl/dravite panasqueira (Silvia)
25 Oct-14:41:01 Re: silvia's collection (Silvia)
25 Oct-14:06:03 Re: new generation for picture - ploum (Ploum)
25 Oct-11:00:02 Re: collection of michael shaw (Michael Shaw)
25 Oct-08:29:19 Re: don lum collection (Don Lum)
25 Oct-07:01:21 Re: new generation for picture - ploum (Ploum)
25 Oct-06:02:47 Re: new generation for picture - ploum (Ploum)
25 Oct-01:41:28 Re: collection of michael shaw (Tobi)
25 Oct-01:37:51 Re: collection of sante celiberti (Tobi)
25 Oct-01:34:43 Re: silvia's collection (Tobi)
25 Oct-01:32:18 Re: don lum collection (Tobi)
25 Oct-01:26:48 Re: collection of tobi (Tobi)
24 Oct-23:42:01 Re: collection of volkmar stingl (Volkmar Stingl)
24 Oct-21:41:08 Re: don lum collection (Don Lum)
24 Oct-21:40:15 Re: the mizunaka collection - quartz (Am Mizunaka)
24 Oct-20:05:46 Silvia's collection - huge siderite (Silvia)
24 Oct-19:57:24 Re: the mizunaka collection - quartz (Silvia)
24 Oct-18:44:45 The mizunaka collection - quartz (Am Mizunaka)
24 Oct-15:15:23 Re: collection of sante celiberti (Sante Celiberti)
24 Oct-14:52:30 Re: collection of michael shaw (Michael Shaw)
24 Oct-13:43:08 Re: collection of michael shaw (Silvia)
24 Oct-11:17:10 Re: collection of michael shaw (Michael Shaw)

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  Topic: Melanophlogite?
Luiz Oliveira

Replies: 11
Views: 3103

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: 1276

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: 1276

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

Replies: 11
Views: 3103

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: 3103

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: 3103

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: 3103

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: 3103

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: 3103

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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