What can you get if you mix and melt sand, limestone and soda ash?

Player #6594483, 2 brothers of mine, worked for years in the sand business, one separated sands, there’s a difference in sand, the other brother worked in the laboratory and knew how to mix certain chemicals in the sand that was ordered and shipped out to different companies all over the world, , they actually made good money with the company,

Fascinating to watch!

Thank you for this information.