Celestite on Calcite | raw blue celestine crystal cluster, natural mineral specimenCelestite on calcite is prized for its unusually saturated, gemmy deep blue celestite crystals that sit attractively on a sculptural dogtooth calcite matrix. The celestite crystals from Laman tend to be well terminated, translucent, and show excellent luster and color concentration for the species, often forming stout tabular prismatic habits that visually contrast with the scalenohedral, golden yellow calcite that both frames and supports them. Size