1978 Photomicrography Competition

Spinel lherzolite

Kenneth A Zbyszewski

Location
Narragansett, Rhode Island, USA
Technique
Polarized Light
Magnification
25x

Hippuric acid

Richard O Ward

Location
Van Nuys, California, USA
Technique
Polarized Light
Magnification
33x

Clinopyroxene crystal with sulfide inclusions and calcite vein

Kenneth A Zbyszewski

Location
Narragansett, Rhode Island, USA
Technique
Polarized Light
Magnification
50x