Shells have a high content of calcium carbonate (95%), or limestone. While calcium carbonate obtained
from oyster and mussel shells can replace commercially sourced calcium carbonate4, the biomaterial is
barely utilised. Our solution will repurpose the biomaterial into a useful resource, thereby avoiding costly
and wasteful disposals on landfills. Made by Mussels will produce high-quality seashell powder (of
different grain sizes), made from either mussel- or oyster shells. The chemical and physical
properties of the shells make our products multipurpose. Today, biomaterial from shells has applications in
the paper industry, the pharmaceutical industry and is used as a fertiliser within the agriculture sector. The
material is also applied within cosmetics, detergents and animal feed supplements.5 Due to the chemical
and physical properties of crushed seashells the material is also used as aggregates to replace sand,
gravel and limestone for landscaping and construction purposes.

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