I was holding on to this unique container for a while now and decided to use it in this number series...
Carbon has an atomic number of 6. This means there are 6 protons in the nucleus of the atom. Carbon is found in several forms; graphite, being soft to diamond, one of the hardest substances on earth. Carbon forms various compounds numbering in the millions! There is carbon in every living thing: a leaf, a stick, a log, cat, shark, elephant, bird and even you. So what does this container represent... Carbon of course!
This is another in a series of caches starting with a number to help people with their stats.