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, also called a Cal king or western king, is a mattress that is 72 inches wide and 84 inches long, making it the longest mattress type available. It's 4 inches narrower and 4 inches longer than a standard king-sized mattress and is often preferred by taller people.