1985 Photomicrography Competition

Secondary copper minerals from decomposed primary copper ores

John I. Koivula

Affiliation
Gemological Institute of America
Carlsbad, California, USA
Technique
Brightfield
Magnification
25x

Transverse section of soybean stem, stained with two fluorochromes to show distribution of cellulose (blue) and lignin (yellow)

Phil Gates

Affiliation
University of Durham
Department of Botany
Durham, United Kingdom
Technique
Fluorescence
Magnification
50x

Thread pattern of hand-embroidered Japanese silk

Allen B. Smith

Location
Grand Junction, Colorado, USA
Technique
Brightfield
Magnification
30x