Assertion: silicon's compound | /r/MadeOf | oxygen
Facets:
Source sentences:
text: It forms various series of hydrides, various halides (many of which contain silicon-silicon bounds) and many series of compounds which contain oxygen, which can have ionic or covalent properties.
text: It occurs in clay, feldspar, granite, quartz and sand, mainly in the form of silicon dioxide (also known as silica) and silicates (compounds containing silicon, oxygen and metals).
text: Other than silicon dioxide, the most common forms of silicon in nature are silicates, compounds that contain silicon, oxygen, and other elements such as magnesium, aluminum, calcium, and phosphorus.