Explain the journey of gold from mining to jewellery, and why gold bars are more expensive than raw gold.

8.1 The price of gold bars is $\boxed{\text{high}}$.

8.2 Two examples of jewellery are:

• $\boxed{\text{Rings}}$
• $\boxed{\text{Necklaces}}$

8.3 Mining operations extract raw gold, which is then processed into gold bars. Jewellery shops, however, sell finished products that have undergone additional processes like design, craftsmanship, and branding, which significantly increases their value and final selling price compared to the raw material.

8.4 The journey of gold from its raw state to a finished product in a jewellery shop involves several key stages. Initially, gold is extracted from the earth through mining, after which the ore is crushed. The crushed gold is then subjected to smelting and pouring to form gold bars. These gold bars are subsequently used in jewellery making, where skilled artisans transform them into various pieces. Finally, the completed jewellery items are sold to customers at a jewellery shop, marking the end of their journey.