1978 Photomicrography Competition

Picric acid crystals

Richard McEvoy, Jr.

Affiliation
Georgia Bureau of Investigation
Decatur, Georgia, USA
Technique
Polarized Light
Magnification
81x

Hexanitrodiphenylamine

Bruce Malamud

Location
Warrenville, Illinois, USA
Technique
Crossed polars
Magnification
24x

Pyrogallic acid, crystallized in water

Rocky Midyett

Location
Covina, California, USA
Technique
Polarized Light
Magnification
100x