There is some pale green chlorite, with anomalous blue interference colors as alteration of garnet. Two amphiboles are present. Mineral identification is uncertain. Anhedral grains of high relief garnet, augite and enstatite in a granoblastic polygonal matrix of plagioclase. Garnet is pink and isotropic.
Chlorite takes place of pyroxenes.
Titanian mineral is titanite. Kyanite, phengitic muscovite, and rutile may be present. Massive olive green rock cut by subparallel, arcuate quartz or calcite veins. Outcrop preserves pillow structure. Plagioclase laths have been replaced by very low relief, isotropic analcite, or low relief zeolites that are 1 gray to red.