Mary W. Ballard wrote:
>
> Technically what you describe as "rust spots" may not be rust (iron rust/lepidocrocite) but rather the color produced microbial damage which is based on a melanin type of chemical structure ("..tiny specks on old garments...").
Mary --
Is the same as "foxing" on paper?
Susan Fatemi
EERC Library
University of California at Berkeley
susanf@xxxxxxxxxxxxxxxxx