im making a build rn and i need a transparent brick but i can't find out how

You don't.

whuh is there noo way to make a semi transparent brick

it is not like roblox studio, i just started using this like 20 minutes agoo and there is no direct option to set transparency

Since sand is SiO2 it's a a covalent compound but it has a giant covalent structure due to which it has a high melting and boiling point. Sand can be turned into glass after melting it at high temperatures.

it’s in the color selector as a slider