Answer the following question given this paragraph: 

Feldspar and quartz are the two most common silicates. In beryl, the silicate pyramids join together as rings. Biotite is mica. The silicate pyramids come together to create thin, flexible sheets. Compare the beryl and the biotite pictured below ( Figure below ).


Q: What are the two most common silicates?

 Choices:

- Analcime and Feldspar

- Petalite and Quartz

- Petalite and Analcime

- feldspar and quartz

A:
feldspar and quartz
