Quick Answer: Materials Used in Metal Puzzles at a Glance Metal Density (g/cm³) Typical Weight (g) Corrosion Resistance Feel Best For Skip If Zinc Alloy 6.6 50–100 (small puzzle) Low (plated only; chips expose base) Heavy, dense, cold like a worn coin Budget buys, entry-level puzzles, first-time collectors You want long-term durability or a precision […]










