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Identity HelpUnknown from Imperial Mine, Nevada, USA

3rd Apr 2016 17:01 UTCAlan Barnes (2)

08404120016028910913528.jpg
Does anybody know what the yellow globular mineral is on this specimen of agardite-(Nd) with conichalcite from Imperial Mine, Railroad Springs, Nevada? There are a couple of other pictures in the gallery from this mine that also appear to show the same mineral but nobody seems to have identified it and nothing like it is listed on the list minerals occurring at the mine. If anybody has any ideas, I'd really like to know. Ideas please!


Best wishes,

Alan

4th Apr 2016 08:58 UTCTimothy Greenland

I would guess that they are probably 'limonite' now - what they replaced is not easy to say... They look rather like the altered dufrenites from Wheal Phoenix - but the context at the Imperial mine seems to be aresenates rather than phosphates...


Just a suggestion - I'm really not sure at all!


Cheers


Tim
 
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