Mineralogy notes on metals and ores in ancient science
The text outlines metal tenacity by diameter and composition, naming gold as most tenacious and listing iron copper silver tin and lead. It discusses mercury fusibility, plating, and a claim that platina resists fusion except under solar focus or dephlogisticated air flame. It defines minerals mineralised by sulphur or arsenic, the nature of ores, and the concept of matrix stones quartz and another opaque mineral.