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This is neat.

We are also facing a global sand shortage crisis due to increased demand for concrete.

That was interesting to watch. Thanks for sharing :-)

Great film.

I wanted to get a sense of the economics of the entire thing.

They said mining for sand could be more profitable than mining for gold.

I presume that means extracting a truckload of sand will yield more profit than a truck of ore containing rock?

I’m also now curious about sand alternatives.

Apparently using desert sand, which is abundant, isn’t feasible and beach / river sand has been the only solution.

A team has recently created a concrete alternative from desert sand, however, that has half the carbon footprint and is made from abundant materials.