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Nikischerite, Siderite, Pyrite photo

Posted by David Parfitt  
Nikischerite, Siderite, Pyrite photo
February 17, 2012 10:48PM
Not so much a mistake/error, but more an omission. Looking at the following photo, perhaps the most striking thing of all is the reddish platy mineral:

http://www.mindat.org/photo-446071.html

If I'm right in assuming this is not nikischerite, siderite or pyrite, doesn't it at least deserve a mention in the title or caption? Perhaps it could also be pointed out in the caption which part of the specimen is the nikischerite, for those unfamiliar with this rare mineral?

David
Re: Nikischerite, Siderite, Pyrite photo
February 17, 2012 11:23PM
The reddish platy mineral is the nikischerite. It tends to change from green to brownish when some of the Fe(II) alters to Fe(III).



Edited 1 time(s). Last edit at 02/17/2012 11:25PM by Alfredo Petrov.
Re: Nikischerite, Siderite, Pyrite photo
February 18, 2012 05:24PM
Thanks for the clarification Alfredo. I would never have guessed that it could be nikischerite, as it looks so different to all the other specimens in the gallery from that locality! Sorry to have raised this unnecessarily. I wonder if it would be worth adding a note to the image caption though, along the lines of what you said in your reply above?

David
Re: Nikischerite, Siderite, Pyrite photo
February 21, 2012 08:14PM
Nothing to be sorry about, David; this is how Mindat's data quality improves and evolves. I'll add a note to the Nikischerite page.
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