NOVELTY - The container (100) has holding container main portion (4) whose inner surface contacts with molten material is formed. A hollow-shaped container outer enclosure (1) that supports the holding container main portion is provided. The container outer enclosure is formed on the outer peripheral surface of holding container main portion so that outer peripheral surface of holding container main portion is covered. The content rate of the selection element of holding container main portion is more than the content rate of selection element of molten material.    USE - Holding container used during manufacture of silicon of solar cell (claimed).    ADVANTAGE - The solidified substance can be removed easily from the container. The mixing of impurity with the molten material can be suppressed. The intensity of the container can be increased.    DETAILED DESCRIPTION - The holding container main portion that contains selection element such as silicon element and germanium element is provided. The holding container main portion is provided with several coating portions which are bedded on outer surface of container outer enclosure. The coating portion is melted at rate higher than the molten material. The melting point of container outer enclosure is higher than the melting point of molten material. The holding container is provided with bottom face and internal peripheral surface. The cross-section of the opening portion is made larger. An impurity element is removed from the silicon material. The molten material is poured into holding container. The refinement silicon material is cooled in the holding container. The solidified substance is taken-out from the holding container. INDEPENDENT CLAIMS are included for the following:    (1) manufacturing method of holding container; and    (2) manufacturing method of silicon of solar cell.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the holding container.    Container outer enclosure (1)    Metallic outer enclosure (2)    Fireproof outer enclosure (3)    Holding container main portion (4)    Holding container (100)