Question

Choose an example of an energy, metal, mineral, or rock resource that humans take from the beach.

Describe the geological origin of the resource.

Describe the use and importance to humans of the resource you choose.

Answer 1

titanium

placer titanium minerals occur in beach and near-shore sediments

90 percent of the titanium minerals are produced from shoreline placer deposits

it is the ninth most abundant element found in the earth crust .aerospace , sports and medicine are some of the common areas where the metal has applications, mainly due to its excellent strength to weight ratio and also due to the high resistance to corrosion.however the vast amount of titanium is not used in its elemental form , but rather as the oxide , titanium dioxide.nature does not yield titanium dioxide in a form suitable for commercial use .there are basic chemical processes exploited by manufacturers

1) the sulphate process

2) the chloride process

titanium dioxide is a versatile chemical with varied application sin different products like paint , rubber, leather, ceramics , welding rods, etc, titanium dioxide is the most used white pigment in producers such as paints and coatings because of its brightness and highest refractive index among all other white pigments and thus an extraordinary capacity for dispersing light in the visible part of the light spectrum .when combined with other colors, soft pastel shades can be achieved .the properties like high refractive index, non-toxic nature , high stability, fine particle, etc made TiO2 to achieve its technical effect