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Identity HelpRastvetaevite-eudialyte

21st May 2013 18:14 UTCHans Kloster

I have a 1,5 kg massiv bright red mineral from Kola, maybee it is an eudialyte, but now I have got a little analysed rastvetaevite with similar colour and lustre. I know the brown-red Illimaussaq-eudialyte, but not the eudialyte from Kola and thats why the eudialyte is suspect to me. Is it possible an 1,5 kg rastvetaevite?

21st May 2013 20:53 UTCKnut Eldjarn 🌟 Manager

To positively identify minerals in the Eudialyte group you need both chemical and structural data. The more uncommon members of the group are just that - uncommon. Without more specific data you will have to settle for "Eudialyte-group" or guess one of the more common members (i.e. Eudialyte, Ferrokentbrooksite..).

Knut

21st May 2013 21:00 UTCPavel Kartashov Manager

Without analyses you never will distinguish rastsvetaevite from eudialyte. Similar to you never distinguish by eye cooperite from braggite or schorl from fluor-schorl. Nobody from serious mans determine eudialytes by eye.

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