Patent ID: 6953759

Claim:
A green/grey glass comprising: a base glass portion comprising: Ingredient Wt. % SiO 2 67-75% Na 2 O 10-20% CaO 5-15% MgO 0-6% Al 2 O 3 0-5% K 2 O 0-5% BaO 0-1% and a colorant portion consisting essentially of: total iron: 0.7 to 1.8% cobalt oxide: 0.001 to 1.0% titanium oxide: 0.25 to 3.0% selenium: 0 to 0.0020% chromium oxide: 0 to 0.010% wherein the glass is green or grey in color and at a reference thickness of 4 mm has a visible transmission (Lta) no greater than 28%, an excitation purity of from 10-25%, and an IR transmission no greater than 7%, and wherein the glass has a % FeO of at least 0.50 and a glass redox of from 0.4 to 0.75.