Black sand - WikipediaBlack sand is sand that is black in color. One type of black sand is a heavy, glossy, partly magnetic mixture of usually fine sands, found as part of a placer deposit. Another type of black sand, found on beaches near a volcano, consists of tiny fragments of basalt. . Punalu'u Beach · Kehena Beach · Kaimū, Hawaii (destroyed by lava flow in.destroyed the basalt sand,What is Sand - Overview and Geology - SandatlasVolcanic sand with reddish weathered basalt from Maui, Hawaii . for the nature to chemically destroy most other minerals that were present in the source rocks.
destroyed the basalt sand