Publisher's description: "Equipment carved of crystal and imbued with psychic energy is the hallmark of many psionic adventurers. Mundane crystal and the rarer deep crystal, however, are not the only substances of use to the skilled craftsmen of psionic cultures. Detailed within the pages of Phrenic Creations: Special Materials, you can find 6 new special materials, 18 psionic alchemy items, and a new type of property for special materials: affinities. Harness the psionic energy of bloodslate, mindpearl, and shiftroot hide in this new psionic supplement from Dreamscarred Press."