Silicon 3 Pc Collector Set

Silicon 3 Pc Collector Set for the Rockhound or Science Lover. 
Tumbled specimens range from 1" to 1.5". Photo is for illustration only. Silicon specimens you receive may be different in size and shape. 

The elements which possess the character of both metals and non-metals are called metalloids. Silicon is a metalloid. 

All the elements commonly recognized as metalloids (or their compounds) have found application in the semiconductor or solid-state electronic industries - think Silicon Valley.