Childrenite Crystals on Smoky Quartz, Eosphorite Childrenite, Childrenite Specimen, Rare Crystals, Rare Mineral Specimen, Specimen contains huge number of lustrous Childrenite Crystals on Smoky quartz. Childrenite is named after J.G. Children, English physician and naturalist. Formula: Fe2+AlPO4(OH)2·H2O Crystal System : Orthorhombic Crystal Habit : Prismatic, Tabular, Platy Cleavage : Imperfect, None, None Luster : Vitreous - Resinous Color : yellowish brown Class : Orthorhombic - Pyra