Rubidium Metal Element 37 Sample Rb, Pure 15 mg 99,99% Argon Sealed Inside Labeled Glass Vial

Rubidium Metal Element 37 Sample Rb, Pure 15 mg 99,99% Argon Sealed Inside Labeled Glass Vial

Cesium Metal Element 55 Sample Cs, Pure 15 mg 99,99% Argon Sealed Inside Labeled Glass Vial

Lithium Metal Element 3 Sample 99.9% Pure 1 gram Shiny Pieces Under Mineral Oil in Labeled Glass Vial