What are three examples of matter that do not exactly fit into one of the usual three phases?

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The three usual phases of matter are solids, liquids, and gases. However, there is a fourth and less commonly mentioned phase of matter that is called plasma. In fact, plasma is the most abundant matter in the universe as a whole. However, since plasma is rarely found on Earth, it is not mentioned as often as the other three states of matter. Stars, the sun, gases in fluorescent lamps and signs, and lightning are all examples of the plasma state of matter.

Plasma is the hottest of all the phases of matter. Plasma is considered to be an ionized gas that has equal amounts of positively and negatively charged ions. This ionic property of plasma causes plasma to be strongly influenced by electric and magnetic fields.

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