MAG - Fire Assay Testing Services - Precious Metals

Fire Assay Method for Gold, Silver, and Gold-Silver
The fire assay method is the most trusted way to measure gold and silver content in samples. By heating the material with lead oxide, precious metals are collected into a small bead. After removing the lead, the remaining bead shows the amount of gold, silver, or both. This method has been used for centuries because it delivers highly accurate results for testing purity.