: In some Indian communities, a 500-year-old tradition uses a specific alloy of tin and copper, melted at 1200 degrees and polished with coconut oil.
Abstract
To achieve optical quality, metal mirrors undergo rigorous post-fabrication treatments:
: Light is reflected at the same angle it strikes the surface (Angle of Incidence = Angle of Reflection).
: Silver is the most reflective across the visible spectrum (reflecting ~95% of light), followed by aluminum (~90%), copper, and gold. 2. Evolution of Manufacturing Techniques


















