1984 Photomicrography Competition

Colony of Plumatella in water preparation

Pentti J. Alho

Location
Helsinki, Finland
Technique
Rheinberg Illumination
Magnification
16x

Inclusions of goethite and hematite in Brazilian agate

John I. Koivula

Affiliation
Gemological Institute of America
Carlsbad, California, USA
Technique
Transmitted Light with Reflected Fiber-optic Illumination
Magnification
30x

Cross section of superconducting magnet wire etched with nitric acid

William Love

Affiliation
Lawrence Berkeley Laboratory
Berkeley, California, USA
Technique
Brightfield
Magnification
150x