Abstract: The present invention provides a glass flake having sufficiently high visible-light absorptivity. The glass flake of the present invention includes a glass composition that contains a transition metal oxide such as an iron oxide and that allows the glass flake to have a visible-light transmittance of 85% or lower measured with an A light source when the glass flake has a thickness of 15 ?m. In this glass composition, it is preferable that the content of Fe2O3 (T?Fe2O3) in terms of the total iron satisfies the following formula, expressed in mass %: 10<T?Fe2O3?50.

Abstract: A method for casting parts of fused ceramic material, from a bath of oxides maintained in the liquid state in a furnace and permanently covered by a layer of powdery batch material are disclosed. The method comprises the following steps:(a) connecting the mold internal cavity, through its lower part, to a downwardly directed feed duct,(b) dipping the lower end of said duct in the liquid bath,(c) establishing in the mold a vacuum causing the bath liquid to rise in the duct and in the mold,(d) allowing the product to solidify in the duct;(e) lifting the mold, together with the duct, and transporting the same apart from the furnace,(f) allowing complete solidification of the product in the mold.Preferably material is removed on a limited area of the bath surface by being swept away with a downwardly directed gas jet, for instance flowing through the feed duct is then lowered through this area free of powdery material into said liquid bath.