Sample 2190LW: Several hundred sand grains occurred in each of the polished thin section and polished block mounts. Almost all grains were of quartz, which is estimated to have had a particle size ranging between 0.1 mm to 1.2 mm, and with grains being angular to sub-rounded. It was observed that three quartz grains had included grains of muscovite up to 40 µm across, one grain had an inclusion of rutile 50 µm across and another had an inclusion of garnet 0.1 mm across.

The sample also had a single grain of K-feldspar 0.3 mm across and another of a lithic grain 0.4 mm across, with the latter being composed of altered fine grained basalt, composed of albite and chlorite, with trace hematite and rutile. Sample 2190LW: Several hundred sand grains occurred in each of the polished thin section and polished block mounts. Almost all grains were of quartz, which is estimated to have had a particle size ranging between 0.1 mm to 1.1 mm, and with grains being angular to sub-rounded.

Two possible grains of somewhat turbid K-feldspar were observed (larger one 0.5 mm across) and there was a single discrete (liberated) grain of leucoxene 0.3 mm across. Rare tiny rutile grains were observed as inclusions in quartz, and one quartz grain had a small (0.1 mm) inclusion of biotite. Other quartz grains have rare tiny amounts of superficial goethite staining.

The occurrence of rutile inclusions in quartz and goethite staining corroborates with the observations made of the sand samples in immersion oil.