T,K all rhyolite glas, D C D E F G H I J 294.55 0.61500 381.25 0.58900 473.05 0.56400 602.35 0.56500 752.05 0.55900 902.75 0.55400 1077.8 0.55400 1225.3 0.54500 294.05 0.65100 348.25 0.60200 403.35 0.58900 473.35 0.57400 553.55 0.56900 645.35 0.56100 743.65 0.55800 854.05 0.55200 973.95 0.55800 1103.8 0.56400 1243.8 0.56500 293.30 0.64900 676.80 0.54600 880.00 0.54500 1078.9 0.54600 1103.9 0.54100 1129.7 0.54600 1152.3 0.54000 1182.6 0.54200 1206.3 0.54300 1226.6 0.54500