Does Silicon come from sand?

Related questions

1. How much does silicone rubber cost?
2. Is silicone a thermoplastic?
3. What is the most common type of sand?
4. Is silicone A plastic?
5. What is the main source of silicon?
6. How is PP plastic made?
7. Are glass baby bottles safer than plastic?
8. Are silicone bags better than plastic?
9. Is TPE environmentally friendly?
10. Is Silicone really better than plastic?

Tags

1. #treated
2. #known
3. #metallurgical
4. #guessed
5. #oxygen
6. #remove
7. #doubt
8. #calcium
9. #leaving
10. #silica
11. #aluminium
12. #impurities
13. #dioxide
14. #compound
15. #grade
16. #silicon