Aerogel Frozen Smoke is about 99% air and 1% silicon dioxide. The result is a very impressionable magic: the bricks can hang in the air, etc. Additionally, this gel also refractories.
A variation of aerogel is the so-called Airglass with a density of 0.05-0.2 grams per cubic centimeter. It is quite transparent, and although it is not very strongly, but for thermal protection surpasses ordinary glass.
Generally, engineers, and scientists believe that in the near future airgel can find tens of applications in the world.