| CPC C03C 3/087 (2013.01) [C03C 1/04 (2013.01); C03C 3/085 (2013.01); C03C 4/02 (2013.01); C03C 2204/00 (2013.01)] | 20 Claims |
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1. A glass composition comprising:
greater than or equal to 60 mol % and less than or equal to 85 mol % SiO2;
greater than or equal to 0.5 mol % and less than or equal to 20 mol % Al2O3;
greater than or equal to 0 mol % and less than or equal to 15 mol % Li2O;
greater than or equal to 0.5 mol % and less than or equal to 25 mol % Na2O;
greater than or equal to 2 mol % and less than or equal to 10 mol % CaO;
greater than or equal to 0 mol % and less than or equal to 10 mol % MgO;
greater than or equal to 0.01 mol % and less than or equal to 0.5 mol % Fe2O3; and
Au, wherein the Au in the glass composition is less than or equal to 0.5 mol %.
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