1977 Photomicrography Competition

Crystals of rutile (titanium dioxide) and tridymite (a polymorph of quartz) in a cobalt-rich glass

James W. Smith

Location
Independence, Ohio, USA
Technique
Nomarski Differential Interference Contrast
Magnification
350x

A thin-melt specimen of hippuric acid

Brian Johnston

Location
Etobicoke, Ontario, Canada
Technique
Darkfield and Polarized Light
Magnification
280x