This visual tool aids in determining the purity of silver. It displays a spectrum of color reactions corresponding to specific concentrations of acid when applied to a silver sample. By comparing the color change observed on the metal to the chart, an individual can estimate the silver’s fineness, differentiating between sterling silver, coin silver, and lower-grade alloys or base metals masquerading as silver.
The assessment of silver’s authenticity and value has historically been crucial for commerce and trade. This method provides a relatively quick and inexpensive way to evaluate the metal’s composition, enabling informed decisions regarding purchasing, selling, or processing silver items. This rapid analysis reduces the risk of fraud and ensures fair valuation based on precious metal content.