Heal A Scratch/Minor Crack On A Mirror
A scratch or a minor crack on a mirror can often be remedied with the help of household items. You can try these quick fixes before seeking help from a professional. A simple yet well-known solution is rubbing the scratch with toothpaste. Use non-gel toothpaste, and you might just end up with an unblemished mirror.
Next, you could give a jewelry-polishing compound (cerium oxide) a try. Clear nail polish is also an affordable alternative that you can apply and wipe the excess away. Last but not least, you could try applying a paste made with dry mustard and white vinegar.