Group 13-16ish contains...
Metalloids are found
Silicon doesn't usually occur pure in nature, but it can be found as silicon oxide in rocks and sands.
Germanium occurs naturally in the earth’s crust.
Arsenic can be found in several ores but also in a pure form in nature.
Antimony can be found in several different minerals.
Tellurium is very rare but can be found in some minerals too.
Metalloids are used for
-used in laundry as borax
-Used in computers
-Used as oxide for stainless steel
-High power circuits in LED
-Acts with lead in car batteries
-Some solar panels
-Blue ray type disks
Polonium isn't used in everyday life.