GEOLOGY

Detailed explanation-1: -In chemistry, sand is known as silica which is the chemical compound composed of silicon (Si) and oxygen (O) with the chemical formula, or silicon dioxide. It is a compound containing silicon and oxygen.

Detailed explanation-2: -Oxygen forms compounds with silicon and other atoms to form minerals like quartz and sand.

Detailed explanation-3: -Silica is another name for the chemical compound composed of silicon and oxygen with the chemical formula SiO2, or silicon dioxide. There are many forms of silica. All silica forms are identical in chemical composition, but have different atom arrangements.

Detailed explanation-4: -1.In its natural form silicon-oxygen bonded compounds are referred to as silicas or silicates and exhibit strongly hydrophobic tendencies. The silicate ion (SiO−23) bonds ionicaly with alkali metals like sodium, potassium, and calcium.

Detailed explanation-5: -Silicon makes up 27.7% of the Earth’s crust by mass and is the second most abundant element (oxygen is the first). It does not occur uncombined in nature but occurs chiefly as the oxide (silica) and as silicates. The oxide includes sand, quartz, rock crystal, amethyst, agate, flint and opal.