Lith'i·a (lĭth'ĭ*ȧ) noun [ New Latin , from Greek li`qos stone.] (Chemistry) The oxide of lithium; a strong alkaline caustic similar to potash and soda, but weaker. See Lithium . Lithia emerald . See Hiddenite . Found on http://www.encyclo.co.uk/webster/L/49
Lithia is an oxide of the metal lithium, which was at first found in a mineral called petalite. It is of a white colour, very soluble in water, acrid, caustic, and acts on colours like other alkalies. Found on http://www.probertencyclopaedia.com/browse/HL.HTM