[NHCOLL-L:4140] Cleaning oxidized pyrite mineral specimens

[Robyn Hodgkins]

I am a UCLA chemistry graduate student helping the Natural History 
Museum of Los Angeles County Mineral Science department. They have 
several minerals containing iron sulfides that have become brown in 
color. The corrosion has not been completely identified, but we believe 
it is mainly oxidized pyrite corrosion. The Museum is interested in 
cleaning these minerals. I have found literature about using 
ethanolamine thioglycollate to clean. Has anyone used this or has an 
opinion of how this would compare to Super Iron Out? thanks!

Robyn Hodgkins
Graduate Student
Garrell Group
UCLA Chemistry and Biochemistry
hodgkins at chem.ucla.edu
310-206-9434