Several videos of orthopyroxene in thin section, showing typical textures and optical characteristics. Supported by Boise State University and the US National Science Foundation.
Key characteristics: high relief, moderately good cleavage, pink-green pleochroism, low interference colors, parallel extinction
00:00 This is about as good as the pink-green pleochroism gets
00:30 Parallel extinction
01:01 Range of orientations and interference colors
01:31 In a gabbro
