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.
California King: 72â³ wide x 84â³ long. In this chart the California King is probably the second most popular size amongst couples in the US. Although itâs less wider than a standard King by 4 inches, it has the extra length accommodating comfortably for people over 6ft 6â³.