Platinum is classified as a precious mineral. Which of the following is NOT a typical use of Platinum?
Correct Answer: Railroad ballast
Subject: geography
- Hard disk drives
- Anti-cancer drugs
- Spark plugs and turbine blades
- Railroad ballast
Explanation: • Railroad ballast uses cheap, heavy rocks like Hornblende, not precious Platinum.
• Platinum is used in electronics (hard disks, LCDs) and engines (spark plugs).
• Platinum-based drugs are also used in chemotherapy for cancer eradication.
• Using a precious metal for train tracks is practically impossible.
• Trick: 'Platinum is too Precious for Pathways'.
• Mica is another mineral used heavily in electronics but for insulation.