Germanium-Gallium Alloy, 99.9999% (Metals Basis), 5g For Research & Development Not for drug, human, animal, or food use Certificate of Analysis: Appearance (Color) Gray Appearance (Form) Shot Assay (Metals Basis) 99.9999% Composition Ge 95% Ga 5% Particle Size 1.5mm Suitability for Semiconductor Applications Zone refined CAS: 797803-65-7 FORMULA: Ge-Ga