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Help With Mineral Identification - Suspect a form of Pyrite
  
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zolacat999




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PostPosted: Feb 04, 2018 15:24    Post subject: Help With Mineral Identification - Suspect a form of Pyrite  

Hi all,

First time posting on the forum but very recently ended up buying a random selection of minerals at auction (Couldn't help myself since they were only £9)

Ironically I am a geologist by profession but mineralogy was never my strong point (hydrologist). One of the pieces out of the auction was of particular interest, i'm guessing its a form of Pyrite, although it has none of the classic brass/gold color i'd expect and is instead a strong silver color. Could this be down to inclusion of a different element affecting the color?

I've worked out the density from weight (1.125kg) and volume to be about 4.5 g/cm3, mineral growths seems to be mostly irregular cubic. I haven't yet done a hardness test. I have attached a few pictures, although I have found it pretty hard to get decent photos since its so reflective.

Unfortunately since I brought it I have no idea of location it was originally sourced.

Any help pointing me in the right direction greatly appreciated :-)



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lluis




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PostPosted: Feb 04, 2018 15:54    Post subject: Re: Help With Mineral Identification - Suspect a form of Pyrite  

Maybe it is a pyrite bar...
I have one, not looking as this, but...

With best wishes

LLuís
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Susan Robinson




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PostPosted: Feb 04, 2018 16:20    Post subject: Re: Help With Mineral Identification - Suspect a form of Pyrite  

I think it's something that is man-made.

Susan Robinson

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zolacat999




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PostPosted: Feb 04, 2018 16:27    Post subject: Re: Help With Mineral Identification - Suspect a form of Pyrite  

Susan Robinson wrote:
I think it's something that is man-made.

Susan Robinson


Seems perfectly possible, any idea what it could be made from?
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Bob Carnein




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PostPosted: Feb 04, 2018 21:03    Post subject: Re: Help With Mineral Identification - Suspect a form of Pyrite  

I agree with Susan--man-made.
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Montanpark




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PostPosted: Feb 05, 2018 05:29    Post subject: Re: Help With Mineral Identification - Suspect a form of Pyrite  

Agree with man-made. Could be ferromanganese or ferrochromium

Cheers
Roger
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zolacat999




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PostPosted: Feb 05, 2018 06:20    Post subject: Re: Help With Mineral Identification - Suspect a form of Pyrite  

Montanpark wrote:
Agree with man-made. Could be ferromanganese or ferrochromium

Cheers
Roger


The Ferrochromium Looks very similar, that's awesome thanks for your help, learn something new everyday :-D
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Volkmar Stingl




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PostPosted: Feb 05, 2018 15:08    Post subject: Re: Help With Mineral Identification - Suspect a form of Pyrite  

Man-made alloy.
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