1979 Photomicrography Competition

Alizarin crimson pigment, recrystalized from solvents used in authenticating paintings

Christine Skirius

Affiliation
McCrone Research Institute
Chicago, Illinois, USA
Technique
Polarized Light
Magnification
24x

Franxinus (timber). Thin section mounted in Canada balsam

Franco G. Frezzato

Location
Bergamo, Italy
Technique
Polarized Light
Magnification
31x

Micro mount hydrous calcium sulfate

J. Jackal

Location
Westfield, New Jersey, USA
Technique
Off axis reflected light technique
Magnification
25x