You don’t need to do that (and I don’t recommend using dyes since it just adds chemicals to the water table), but you do want to get the right kind of sand. Sand is mostly made of silica.

The silica sand for glass making industry share is expected to record a CAGR of 4.1% between 2023 and 2033. The market is expected to be valued at USD 5.7 billion in 2023. By 2033, the estimation is ...