silver-soda Silica - 1 pound si02$1.70 Soda Ash - 1 pound soda-1$1.70 5 pounds si02-5$2.25 5 pounds soda-5$3.55 10 pounds si02-10$4.00 10 pounds soda-10$6.50 50 pounds si02-50$10.00 25 pounds soda-25$14.75 100 pounds si02-100$16.00 50 pounds soda-50$26.50 500 pounds siO2-500$75.00 100 pounds soda-100$49.00