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PhotosTurkestanite - Poudrette quarry, Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada

19th Oct 2012 22:13 UTCModris Baum 🌟 Expert

Turkestanite

Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

László –would you recommend that all (unanalyzed) MSH “steacyte” be moved to “steacyte group”?

Or is that overkill?

Thanks - Modris

31st Dec 2012 16:01 UTCLászló Horváth Manager

Modris,

Sorry, I just stumbled on your message today, I missed it in October. Good question. Most of the photos show steacyites collected around 1969 with the yofortierite etc. These are mainly steacyite or close to borderline steacyite/turkestanite. I would leave those photos alone, however, anything that came from marble xenoliths and igneous breccia are somewhat more likely to be turkestanite, so it would make sense that we move them to "steacyite group". Of course if we do this to steacyite how about eudialyte, leifite/eirikite etc?

Laszlo

31st Dec 2012 20:31 UTCModris Baum 🌟 Expert

Hi Laszlo

The one steacyite I have posted from MX was analyzed as "close to but not quite" turkestanite. So I will leave that as steacyite.

Regarding the eudialyte and leifite/eirikite: I have already been posting all except specifically analyzed specimens (or specimens from well known analyzed finds) as "group".

I believe that Uwe placed a generic "caveat" for the older photos on the eudialytepage, but I think that new photos should be forced to "group" unless an analysis is cited. It might be best to do that even for the older "eudialyte" photos because (if I remember correctly) I think you indicated somewhere that kentbrooksite is actually more common at MSH.

Thanks - Modris

1st Jan 2013 20:50 UTCLászló Horváth Manager

Modris,

Based on analytical evidence (number of analyzed specimens) ferrokentbrooksite may be almost as common as eudialyte, however, overall quantity is difficult to estimate. I agree, any new unanalyzed specimen photos should go to group.