What are the two most common silicates?
- Correct Answer: Micas and quartz
- Olivine and quartz
- Micas and feldspar
- feldspar and quartz
Explanation: Feldspar and quartz are the two most common silicates. In beryl, the silicate pyramids join together as rings. Biotite is mica. It can be broken apart into thin, flexible sheets. Compare the beryl and the biotite shown in Figure below .
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