Graphite has the same chemical composition as Diamond, which is also pure carbon, but the molecular structure of Graphite and Diamond is entirely different.
The California king size is a mattress measuring 72 inches wide by 84 inches long. In terms of length it is four inches longer than the standard king and queen size mattresses. The mattress was made by David Bergeson of California sometime in 1982.
A California king bed is 4 inches longer and 4 inches narrower than a European, or regular, king bed. It is typically 72 inches wide by 84 inches long whereas a regular king-sized bed is 76 inches wide by 80 inches long. A king bed is considered the ideal size for a couple due to its width; the width is equivalent to two extra-long twin beds pushed together.