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Cinnabar and not Realgar inclusions?
  
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Rob Schnerr




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PostPosted: Jun 16, 2019 14:06    Post subject: Cinnabar and not Realgar inclusions?  

The next photo is of a baryte about which I have a question. I hope someone can give me an answer, although I realize that this can be difficult or sometimes impossible when there is only a photo. The person we bought this specimen from is a collector and seller for 40 years and is very experienced in identifying minerals, particularly baryte. Over the years we became friends and we trust him for 100%. He bought this piece on the mineral show of Aschaffenburg in 1988 from Bernard Strategier, a Romanian (field) collector and dealer who lived the last years of his life in Sardinia. Also a very trustworthy and knowledgeable person. Bernard Strategier told that the red color in this baryte is caused by inclusions of cinnabar and not by realgar, which is mostly the case with red barytes from the Roata mine (Cavnic, Romania). My friend has seen baryte specimen with cinnabar only once before on the Munich show and I’ve seen it once on the site of Jordi Fabre not long ago.

So my question is the following: is it possible to say something about the possibility that we’re really dealing here with cinnabar and not realgar inclusions?



315 Baryte.jpg
 Mineral: Baryte
 Locality:
Baia Sprie Mine, Baia Sprie, Maramures, Romania
 Dimensions: 95 x 70 x 25 mm
 Description:
Baryte with red inclusions of Cinnabar (?)
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315 Baryte.jpg


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Jordi Fabre
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PostPosted: Jun 16, 2019 15:07    Post subject: Re: Cinnabar and not Realgar inclusions?  

Without doubt these inclusions are Realgar
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Rob Schnerr




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PostPosted: Jun 16, 2019 15:39    Post subject: Re: Cinnabar and not Realgar inclusions?  

OK, thank you very much. I had my doubts, but now I know.

Regards,
Rob
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nicu




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PostPosted: Jun 16, 2019 16:02    Post subject: Re: Cinnabar and not Realgar inclusions?  

Rob Schnerr wrote:

Mineral: Barite
Locality: Roata Mine, Cavnic mining area, Cavnic, Maramures, Romania
Dimensions: 95 x 70 x 25 mm


Greetings to all,

It is necessary to make a correction for the locality mentioned in the data written here: these specimens come from Baia Sprie area, Maramureş County, Romania.

___________________________________________________

True, already fixed. Thanks Nicu.
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Rob Schnerr




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PostPosted: Jun 17, 2019 02:55    Post subject: Re: Cinnabar and not Realgar inclusions?  

Hello Nicu,

Thanks for your correction.
I will post the photo with the correct data in my collection thread.

Kind regards,
Rob
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nicu




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PostPosted: Jun 17, 2019 06:51    Post subject: Re: Cinnabar and not Realgar inclusions?  

Hello Rob,

I'm pleased to clarify anything can be helpful on FMF. I would like to add, to be more precise, that these samples containing Realgar and sometimes yellowish clay inclusions, were collected in the 75-85s on the northern part of the Minei Hill ore deposit, from some of the galleries also called Lenpem / Lempem galleries, with an altitude of 1250-1350 m, all of which are now collapsed.

Maybe it would be useful to specify in this context that the presence of very small clusters of Cinnabar, with a like bunches habitus, usually of 0.1-5 mm in size, in association with the colorless Baryte, (+ minor arsenic) was identified at Boldut-Cavnic ore deposit, Surdesti-Cavnic area and Mine No.5, Baia Sprie.


Best regards,

Nicu

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Niels Brouwer




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PostPosted: Jun 17, 2019 07:36    Post subject: Re: Cinnabar and not Realgar inclusions?  

I agree with the others that it is definitely realgar that is responsible for the red colour in these.

There are numerous other localities around the world where baryte is found with very distinct cinnabar inclusions, such as Clarashall Mine in Germany and Almaden in Spain, however the colour difference between the two inclusions is quite noticeable.

Hematite is commonly responsible for the red colour in baryte too, such as the ones from Lavrion in Greece or the area around Frizington in the UK, but once again this isn't the case with these particular barytes from Baia Sprie.
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Rob Schnerr




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PostPosted: Jun 18, 2019 10:52    Post subject: Re: Cinnabar and not Realgar inclusions?  

Hello Nicu and Niels,

Thank you both very much for your help. I like to know as much as possible about the specimens I have, so your information is very welcome.

Kind regards,
Rob
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