11.   Carling type gold is composed of tiny grains.

12.   Nits resemble tiny white grains and may contain developing lice.

13.   Scientists have said a key component is tiny grains of magnetite that can shift in response to the magnetic field, acting like a compass.

14.   Using underwater cameras and other high-tech tools, Clifford and his crew painstakingly charted wreckage discoveries and traced patterns left by tiny grains of gold.