A fine specimen of this lithium-aluminium member of the kaolinite-serpentine group. This phyllosilicate occurs as off-white to pale yellow, fan-like lamellar aggregates and globular clusters of platy, pseudohexagonal crystals with a greasy lustre. On a microcline matrix. The piece comes from its type locality.
This pegmatite It is one of the most famous pegmatites in the Sahatany pegmatite field, but administratively, the locality is located just outside the border of the Vakinankaratra Region and the Antananarivo Province (where the Sahatany Valley and most of the other localities in the pegmatite field are located).