Wild viral video shows blood-red scenes covering island after rainstorm

Viral video circulating online shows how heavy rain recently turned an island's landscape blood-red. 

"The red soil originates its color from a mixture of hematite and iron hydroxides, but the amount of hematite dominates over iron hydroxides." 

Hormuz Island is a small key in the Strait of Hormuz off Iran's southern coast and is home to a few thousand residents.

It's also known locally as Rainbow Island because of its multicolored soils and rock formations.

"Rock salt or halite is weak and buoyant, so it loses its brittleness and flows more like a liquid when under high pressure."

The striking color is also said to come from iron oxide-rich soil locally known as "golak," which covers much of Hormuz's surface.