1995 Photomicrography Competition

Gadolinium gallium oxide showing extensive internal strain extending from the growth seed

John I. Koivula

Affiliation
Gemological Institute of America
Carlsbad, California, USA
Technique
Transmitted Polarized Light
Magnification
15x

Sodium chloride (table salt)

Charles Gellis

Affiliation
Photo-Graphics
Roslyn Heights, New York, USA
Technique
Phase Contrast
Magnification
100x