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.
Size Comparisons and Dimensions. 1  California or Cal king bed is 72 wide x 84 long. 2  4 inches longer than the King Size Bed. 3  Longest bed available.  Width per person is 36 1  inches. Standard or eastern king bed is 76 wide x 80 long.  4 inches wider than the California king 1  bed. Width per person is 38 inches.