- Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula SiO2, commonly found in nature as quartz. In many parts of the world, silica is the major constituent of sand. Silica is one of the most complex and abundant families of materials, existing as a compound of several minerals and as a synthetic product. Examples include fused quartz, fumed silica, opal, and aerogels. It is used in structural materials, microelectronics, and as components in the food and pharmaceutical industries. All forms are white or colorless, although impure samples can be colored.
Ted Cruz lies. He’s a liar. And that’s why nobody likes him, that’s why his Senate people won’t endorse him. That’s why he stands on the middle of the Senate floor and can’t make a deal with anybody. He looks like a jerk. He’s standing all by himself. And you know, there’s something to say about having a little bit of ability to get other people to do things. You can’t be a lone wolf and stand there. That’s sort of what we have right now as a president.
Donald Trump, Morning Joe (26 January 2016)