Silica Defined. Silica is another name for the chemical compound silicon dioxide. Each unit of silica includes one atom of silicon and two atoms of oxygen. If you have never heard of silica before, you might be surprised to hear that you probably come into contact with it every day.
The Fifth Circuit, for example, includes the states of Texas, Louisiana, and Mississippi. Cases from the district courts of those states are appealed to the United States Court of Appeals for the Fifth Circuit, which is headquartered in New Orleans, Louisiana.
How many circuit courts does Indiana have? Indiana has 91 Circuit Courts. There is normally a Circuit Court in  each county, and Indiana has 92 counties, but two counties (Ohio  and Dearborn) share a single Circuit.