CAS 7440-60-0 appears in our catalog under these names: Holmium pieces, 99.9% (metals basis excluding Ta) , Holmium foil, 0.127mm (0.005in) thick, 99.9% (REO) , Holmium foil, 0.62mm (0.024in) thick, 99.9% (REO) , Holmium foil, 0.3mm (0.01in) thick, 99.9% (REO) , Holmium foil, 1.0mm (0.04in) thick, 99.9% (REO) . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 5g, 25g, 25x25mm, 50x50mm, 2g, 10g, 50mm, 10mm.