| 摘要 |
Lead- and barium-free crystal glass for the manual or machine production of high-grade glass objects with a refractive index higher than 1.52 and a density of at least 2.45 g/cc, wherein the crystal glass comprises the following components in weight percent.as well as at least two components selected from the group consisting of Er2O3, Nd2O3, CeO2, CoO, Pr2O3, SeO, NiO and MnO and has a moisture content of 0.025 to 0.07% by weight.
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