iron sand sandstorm block

However, Mikoto and Uiharu were not able to enter the station.
With a tremendous noise, the wall of the building suddenly exploded.
The wall made of multiple pieces of glass shattered. The roller coaster-like curving rails
were torn apart and they fell down to the ground destroying more rails on the way down.
When the mass of constructions struck the white sand, a great sandstorm explosively
spread out in all directions.
“Kyaahh!?” shouted Uiharu as she was swallowed up by the sandstorm.
Mikoto manipulated magnetism to bring the iron sand flying through the air under her
control and swung it around to blow away the sandstorm.
A white line like the remnants of a contrail seemed to cut through the blue sky from a
point in the air leading to the destroyed wall of the building. Something whooshed by in
Mikoto’s vision. It was about twenty meters up in the sky. A black form jumped from the
beach to an inland waterway.

- Toaru Kagaku no Railgun SS1, Chapter 5