How is black sand made?



  1. 0 Votes

    Black sand is basically a layer on top of sand in areas that have wave energy, in the proximity of volcanoes, and in areas where most of the source rock is mafic, or dark-colored and lacking in a material called silica. Black sand has various types of dark colored minerals that usually weigh more than silica and contain high levels of iron.

  2. 0 Votes

    Black sand is made around volcanic regions of the world. It is composed to more iron-rich material than white sands, which gives it its black color. Normal sand is high in silica. Rocks that contain a high amount of iron and heavier metals are also known as mafic.

  3. 0 Votes

    Black sand evolves from ground lava. One area it can be found is on the southeast part of the Hawaiian island which is the most volcanically active. 

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