Question

similarities between diamond and silicon dioxide

Answer 1

1) They both have a tetrahedral crystal structure which imparts a certain hardness to the material 

2) The are both found in nature, though SiO2 is more abundant 

3) They are both very important industrially utilized materials 

4) They both have high melting points (over 1500 K) 

5) They are both relatively inert (stable to chemical reactivity) 

6) They can both form clear uncolored crystals 

7) They are both mined for extraction 

8) They are both used ub optics applications