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The information provided within this Forum about localities is only given to allow reference to them. Any visit to any of the localities requires you to obtain full permission and relevant information prior to your visit. FMF is strictly against any illicit activities related to collecting minerals.
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| Search found 34 matches |
| Author | Message |
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 Topic: Spherical inclusions in amethyst - cristobalite? vs fluorite |
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| silvio steinhaus Replies: 15 Views: 16037 |
 Forum: Minerals and Mineralogy Posted: Mar 29, 2022 07:28 Subject: Re: Spherical inclusions in amethyst - cristobalite? vs fluorite |
| Amir, good morning.
I'm out of São Paulo this week, when I get back I can separate a sample and send it to you to analyze the inclusions. |
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| Topic: Spherical inclusions in amethyst - cristobalite? vs fluorite |
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| silvio steinhaus Replies: 15 Views: 16037 |
Forum: Minerals and Mineralogy Posted: Mar 28, 2022 15:46 Subject: Re: Spherical inclusions in amethyst - cristobalite? vs fluorite |
| Another Amethyst sample from the same region, different mining. In this sample, the white inclusion is not homogeneous as it normally is, it is associated with Goethite and the calcite grows from abov ... | |
| Topic: Spherical inclusions in amethyst - cristobalite? vs fluorite |
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| silvio steinhaus Replies: 15 Views: 16037 |
Forum: Minerals and Mineralogy Posted: Mar 28, 2022 15:36 Subject: Re: Spherical inclusions in amethyst - cristobalite? vs fluorite |
| Another Amethyst sample from the same region, different mining with Calcite association. | |
| Topic: Spherical inclusions in amethyst - cristobalite? vs fluorite |
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| silvio steinhaus Replies: 15 Views: 16037 |
Forum: Minerals and Mineralogy Posted: Mar 28, 2022 15:32 Subject: Re: Spherical inclusions in amethyst - cristobalite? vs fluorite |
| Jaroslav Hyrsl had analyzed some samples that the late Luiz Menezes sent him, and the result was Cristobalite in one of the samples and Fluorite in another sample. I must have about 40 samples in the ... | |
| Topic: Strange planes in quartz |
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| silvio steinhaus Replies: 25 Views: 48616 |
Forum: Minerals and Mineralogy Posted: Mar 15, 2015 01:18 Subject: Re: Strange planes in quartz |
| I have some similar quartz purchased from a prospector in Brazil, from the border of Minas Gerais to Bahia, unknown city.
The cuts in one of the samples looked me possible altered epidotes inclusions ... |
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| Topic: Coleção de Silvio Steinhaus |
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| silvio steinhaus Replies: 29 Views: 59681 |
Forum: Collection photos and Collector's page Posted: Jul 23, 2012 18:20 Subject: Re: Coleção de Silvio Steinhaus |
| Minerals from my collection. | |
| Topic: Mineral specimens with inclusions - (28) |
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| silvio steinhaus Replies: 95 Views: 283765 |
Forum: Featured Columns of FMF Posted: Sep 04, 2011 20:40 Subject: Re: Mineral specimens with inclusions |
| Amethyst with various inclusions, calcite, cristobalite, goethite, and the red stuff in the picture, I do not know what it is.
The area of the photo is 14 x 12mm piece is 160 x 175mm, with many inclu ... |
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| Topic: Mineral specimens with inclusions - (28) |
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| silvio steinhaus Replies: 95 Views: 283765 |
Forum: Featured Columns of FMF Posted: Sep 02, 2011 12:18 Subject: Re: Mineral specimens with inclusions |
| Calcite with inclusion of goethite on amethyst | |
| Topic: Mineral specimens with inclusions - (28) |
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| silvio steinhaus Replies: 95 Views: 283765 |
Forum: Featured Columns of FMF Posted: Sep 02, 2011 12:09 Subject: Re: Mineral specimens with inclusions |
| Amethyst with inclusion of Cristobalite | |
| Topic: Mineral specimens with inclusions - (28) |
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| silvio steinhaus Replies: 95 Views: 283765 |
Forum: Featured Columns of FMF Posted: Sep 02, 2011 12:03 Subject: Re: Mineral specimens with inclusions |
| Quartz with inclusion of green Uvite | |
| Topic: Mineral specimens with inclusions - (28) |
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| silvio steinhaus Replies: 95 Views: 283765 |
Forum: Featured Columns of FMF Posted: Sep 02, 2011 11:59 Subject: Re: Mineral specimens with inclusions |
| Quartz with inclusion of green Uvite | |
| Topic: Mineral specimens with inclusions - (28) |
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| silvio steinhaus Replies: 95 Views: 283765 |
Forum: Featured Columns of FMF Posted: Sep 02, 2011 09:09 Subject: Re: Mineral specimens with inclusions |
| Agate with Goethite inclusions.
As the total sample is 3 x 2 cm and is cut cabochon |
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| Topic: Any information about mineral museums in Minas Gerais, Brazil? |
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| silvio steinhaus Replies: 5 Views: 17280 |
Forum: Worlwide Museums & Visits to Museums and private collections Posted: Jun 17, 2011 00:46 Subject: Re: Any information about mineral museums in Minas Gerais, Brazil? |
| You will find several museums in Minas Gerais, the best are the Museum of Geology of Belo Horizonte (new), located in Liberty Square, and one of the best of Brazil is the Museum of Geology College of ... | |
| Topic: How all you got started in collecting? |
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| silvio steinhaus Replies: 21 Views: 65298 |
Forum: The histories behind mineral specimens Posted: Jan 21, 2011 20:47 Subject: Re: How all you got started in collecting? |
| When he was 5 years old, my father encouraged me to collect stamps because he had a collection of childhood, I started collecting stamps from Brazil and then stamps from different countries, and found ... | |
| Topic: Coleção de Silvio Steinhaus |
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| silvio steinhaus Replies: 29 Views: 59681 |
Forum: Collection photos and Collector's page Posted: Jan 18, 2011 17:01 Subject: Re: Coleção de Silvio Steinhaus |
| Minerals from my collection | |
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