3.2 Types of Minerals

1234
Across
  1. 4. a geometric solid having four sides that are equilateral triangles
Down
  1. 1. mineral that contains silicon (Si), oxygen (O), and usually one or more other elements
  2. 2. rare, precious, highly prized mineral that can be cut, polished, and used for jewelry
  3. 3. mineral or rock that contains a valuable substance that can be mined at a profit