Pure silver is too soft for jewellery, leading to the creation of alloys like sterling silver (92.5% silver, 7.5% copper) to balance shine and durability. Proper care for silver jewellery includes storage away from sunlight and moisture, avoiding contact with water and chemicals, and regular inspections for damage. It is crucial to purchase from reputable sources and understand hallmarking. Wearing silver can actually help keep it tarnish-free, but when tarnishing occurs, it can be cleaned with a little effort.