ELI5: Explain Like I'm 5

Stamp sand

Stamp sand is a kind of sand that is left over after crushing rocks. It is also called 'crusher sand' and it is usually found near places where rocks are being broken down into smaller pieces. When rocks are crushed, they produce different sizes of particles. The big-sized particles are called 'gravel', the medium-sized particles are called 'sand' and the small-sized particles are called 'stamp sand'.

Stamp sand is usually unwanted as it has little or no use in construction work and is considered a waste product. Stamp sands are formed from materials such as iron, copper and gold ores. These materials are crushed to fine powder, and then the metal is extracted, leaving the stamp sand behind.

The problem with stamp sand is that it is harmful to the environment. It contains heavy metals such as lead and arsenic, which can contaminate soil and water if it is not properly disposed of. Stamp sand can also cause erosion and harm aquatic life if it gets into rivers or lakes.

Therefore, stamp sand is usually removed and transported to a landfill or used for beach replenishment, which is when sand is added to a beach to make it bigger. Sometimes it is also used to create sand dunes in arid regions.

In summary, stamp sand is a type of sand that is left over after rocks are crushed and is usually considered a waste product. It can be harmful to the environment and needs to be properly disposed of to prevent contamination.