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Techniques for Collectors(Hydroxyl)herderite and SIO

21st May 2015 23:00 UTCSteve Hardinger 🌟 Expert

Does anybody have an experience with (hydroxyl)herderite and super iron out? I suspect it will be safe but this is a nice specimen and I'd rather not risk it.

29th Jun 2015 15:16 UTCSteve Hardinger 🌟 Expert

The specimen survived a one-hour treatment without any observable change, other than removal of the iron staining.

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