The formation of sand from quartz | Britannica
Aug 11, 2020#0183;#32;Of course, not all beaches are purely quartz sand and not all quartz sand ends up on beaches. But the fact that so many beaches and so many sands are the same is a testament to the chemistry of the most common components of the Earth''s crust as they cool and crystallize and to the physics of sediment, slowly shifting and surging towards the sea.