Two videos of wollastonite (uncommon pyroxenoid) in thin section, showing typical textures and optical characteristics. Supported by Boise State University and the US National Science Foundation.
Key characteristics: large square or rectangular crystals, high relief, low interference colors, association with other calc-silicate minerals
00:00 Contrasted with clinopyroxene
00:31 Contrasted with garnet
01:01 It's difficult to make a thin section with an end section
