2ml sample of Diamine Astral fountain pen ink, in a labeled plastic vial. Initially launched as part of the 2023 Diamine InkVent calendar and now a part of the regular Diamine Purple Edition collection, this shimmering Astral base color is black with added gold/green shimmer and sheen. It\’s a chameleon color, meaning it appears to change color depending on the angle and lighting it\’s viewed in.