CPC C03C 3/093 (2013.01) [C03C 4/02 (2013.01); C03C 21/002 (2013.01)] | 20 Claims |
1. A glass composition comprising:
greater than or equal to 50 mol % and less than or equal to 80 mol % SiO2;
greater than or equal to 7 mol % and less than or equal to 25 mol % Al2O3;
greater than or equal to 1 mol % and less than or equal to 15 mol % B2O3;
greater than or equal to 7 mol % and less than or equal to 20 mol % Li2O;
greater than or equal to 0.5 mol % and less than or equal to 12 mol % Na2O;
greater than 0 mol % and less than or equal to 1 mol % K2O; and
greater than or equal to 1×10−6 mol % and less than or equal to 0.0016 mol % Au,
wherein [5.72*Al2O3 (mol %)-21.4*ZnO (mol %)-2.5*P2O5 (mol %)-35*Li2O (mol %)-16.6*B2O3 (mol %)-20.5*MgO (mol %)-23.3*Na2O (mol %)-27.9*SrO (mol %)-18.5*K2O (mol %)-26.3*CaO (mol %)] is greater than −609 mol %.
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