NOVELTY - A laminated crucible (1) has a silica layer provided inside a casting mold (2) and a barium coating layer (4) provided on the surface of silica layer (3). The laminated crucible produces silicon ingot by dissolving silicon raw material and casting.    USE - Laminated crucible for casting silicon ingot used for manufacturing silicon substrate for solar cell.    ADVANTAGE - The laminated crucible enables to produce silicon ingot with reduced oxygen concentration, and is easily manufactured. The solar cell having the silicon substrate produced using the silicon ingot has improved photoelectric conversion efficiency.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of laminated crucible. A slurry consisting of fused silica powder and colloidal silica is coated or sprayed inside casting mold and a slurry bed is formed. Coarse fused silica sand (51) having average particle diameter of 500-1500 mu m, is made to spread on the surface of slurry bed and an outer stucco layer (50) is formed. The slurry is coated or sprayed on the outer stucco layer, and slurry bed is formed. Fine fused silica sand (61) having average particle diameter of 50-300 mu m, is made to spread on the surface of slurry bed and inner stucco layer (60) is formed. The inner stucco layer and outer stucco layer are dried and baked to form silica layer. A barium slurry consisting of barium hydroxide powder or barium carbonate powder having average particle diameter of 0.1-0.01 mu m is applied or sprayed on the inner layer, and a barium slurry bed is formed in the outermost surface. A barium coating layer is formed on the surface of silica layer. Thus, laminated crucible is manufactured.    DESCRIPTION OF DRAWING(S) - The drawing shows the cross-sectional view of laminated crucible.    Laminated crucible (1)    Casting mold (2)    Silica layer (3)    Barium coating layer (4)    Outer silica layer (5)    Inner silica layer (6)    Barium-containing compound (41)    Outer stucco layer (50)    Coarse fused silica sand (51)    Inner stucco layer (60)    Fine fused silica sand (61)