Sand is a granular material composed of finely divided rock and
mineral particles. It is defined by size, being finer than gravel and
coarser than silt. Sand can also refer to a textural class of soil or
soil type; i.e., a soil containing more than 85 percent sand-sized
particles by mass.The composition of sand varies, depending on the
local rock sources and conditions, but the most common constituent of
sand in inland continental settings and non-tropical coastal settings
is silica (silicon dioxide, or SiO2), usually in the form of quartz.
The second most common type of sand is calcium carbonate, for example,
aragonite, which has mostly been created, over the past half billion
years, by various forms of life, like coral and shellfish. For
example, it is the primary form of sand apparent in areas where reefs
have dominated the ecosystem for millions of years like the Caribbean. Sand Biography, NetWorth, Height, Age, Weight, Family, Married, Son, Daughter