LAS SYSTEM CRYSTALLINE GLASS, LAS SYSTEM CRYSTALLIZED GLASS, METHOD FOR PRODUCING LAS SYSTEM CRYSTALLINE GLASS, AND METHOD FOR PRODUCING LAS SYSTEM CRYSTALLIZED GLASS

摘要

The purpose of the present invention is to provide an LAS system crystallized glass which is reduced in coloring. An LAS system crystallized glass according to the present invention is characterized in that the V content and the Cr content therein are 0-3 ppm, respectively, and is also characterized in that the contents of Sc, La, Ce, Pr, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ac, Th, Pa and U therein are 0-10 ppm, respectively.