Nothing unfortunately
Lightening+Sand = Fulgurite
A rock formed by lightning striking sand is called a fulgurite. Lightning's intense heat fuses the sand particles together, creating a tube-like structure known as a fulgurite.
Fulgurite
fulgarite (sometimes spelled fulgurite)
lightning makes glass when it hits sandy soil. its called a fulgurite.
When a bolt of lightning strikes loose sand, the electric charge vaporizes a thin hole and melts the zone around it, creating an instant froth of natural glass. These tubes-fulgurites-can be a meter long or more, but they're fragile, and what you see in rock shops is usually a piece like this, 4 centimeters long and as light as pumice. Sometimes a fulgurite forms in solid rock. This fulgurite specimen came from the Sahara Desert in Morocco. Fulgurite is scientific Latin for "lightning stone."
You could get a fulgurite. But you'd probably just get damaged concrete.
It turns into a rock called fulgurite (fused quartz). When sand is struck by lightning, the silica in the sand melts and fuses, forming a glass tube called fulgurite. Fulgurite is generally rare, but can be found all over the world. The fulgurite can be a variety of different colors depending on the mineral content of the sand. (see related link)
If lightning strikes a sand bed, it will form a fused tube in the sand, known as Fulgurite. This form is not confined to surface conditions, tubes are found up to 15m below the surface, and Fulgurite tubes may be up to a few cm in dia.
Glass is made inside a volcano, as Obsidian, a black glassy material. Of much use in primitive society as a cutting implement. A lightning strike may also form a glassy object, rather uncommon, and known as Fulgurite.
how much is 238.5 worth
There are different kinds of sand which produce different kinds of glass when melted, but sand can certainly produce a green glass when melted by lightning.