Manandonite is a lithium aluminum silico-borate hydrate member of the Kaolinite-Serpentinite Group. This rare layer silicate occurs as off-white to pale yellow, fan-like lamellar aggregates and globules of platy, orthorhombic (pseudohexagonal) crystals exhibiting a greasy luster. Manandonite was named by A. Lacroix in 1912 for the type locality: Antandrokomby pegmatite, Manandona Valley, Sahatany Pegmatite Field (Mt. Ibity area), Vakinankaratra Region, Antananarivo Province, Madagascar.
You can buy these clear pale yellow crystals online from The Arkenstone, www.iRocks.com to add fine mineral specimens to your collection.