[meteorite-list] Cleaning stony meteorites

[Floyd "Griff" Griffith]

Hello all and good day

I have some uNWA’s that have rust or a rust color in the crust. This is not 
fresh crust.
I would like to remove the rust and or rust color from the surface of these 
meteorites.
I have also read a post that stated there is a chemical way to the original 
crust?
Any help would be appreciated.
I am familiar with working on meteorites as far a cutting, polishing and 
etching.
Thanks in advance for your help.

Griff
Parker, Colorado, USA
IMCA 2510