Gold, Silver and other costly metals are used only for jewellery and coins
False, both Gold and Silver has other uses too. As both the metals are good conductors of electricity so they are widely used in computer motherboard and other electronic circuit boards. Gold is also used in dentistry, aerospace and medicine and Silver is used in photography and making utensils and show pieces. Other costly metals has other uses too like Rhodium is used to manufacture aircraft and in cars. Platinum coats missile nose cones, makes corrosion resistant products and jet engine fuel nozzles.