Reasonable suspicion is defined by a set of factual circumstances that would lead a reasonable police officer to believe criminal activity is occurring. This is different from the probable cause (what a reasonable person would believe) required for an arrest, search, and seizure.
Black Sand Beaches. Black sand at Kalapana. This new black sand beach is forming after the old one was swept away by a lava flow in 1986. The sand on all black sand beaches on Hawaii is made out of tiny fragments of lava. In contrast to the green and white sand, most of the black sand is created almost instantaneously. When hot lava enters the water it cools down so suddenly that it solidifies, and shatters into large amounts of black sand.
Black sand beaches are not a common occurrence throughout the world, but do exist in areas with volcanic activity. The sand found on black sand beaches originated from ground lava that has evolved over centuries. Black sand found on the beaches varies in size from larger coarse pieces to finer granules.hough black sand beaches are a rare occurrence throughout the world, there are several regions where they are common. Islands that have black sand beaches include Iceland, Hawaii, Indonesia and Polynesia.