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Identity HelpGreen botridal specimen

9th Apr 2006 11:08 BSTJose Carlos Garcia

Hello all,


could somebody help me with the indentification of this specimen? I think it does not look like malachite, but I'm not an expert. Any suggestions will be appreciated. The specimen was collected in a Cu, Ni, Co and Fe mine (La Profunda mine, Leon, Spain), where I have read minerals like annabergite, tirolite, olivenite, malachite, etc. were found. I've attached a photograph.


Thank you very much.

9th Apr 2006 13:28 BSTBarry Flannery Expert

Jose,


It's not annabergite anyway as that is much darker green.


Not Tyrolite as that is brighter and does not (to my knowledge) form mammilations like that, botryoids rarely but definitely not like that.


I doubt olivenite as that is darker green and usually forms crystals or botryoids with visible needles coming out...etc.


Malachite is a possibility as I have found some of that colour but NOT lustre before...?


Anyone else have any idea?


Barry

10th Apr 2006 11:22 BSTUwe Kolitsch Manager

Possibly cornwallite (or pseudomalachite).

16th Nov 2006 14:37 GMTJulio Martinez Lopez

Si es de La Profunda de Carmenes Leon, es malaquita recubierta de dolomita transparente y la roca matriz es dolomita tambien con oxidos de Fe y Cu
 
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