When one studies botany, zoology, microbiology and the other fields of biology it is not very difficult to see that God created within the creation a vast number of different kinds of creatures. This is so very true also in Chemistry. In Organic chemistry one can study the vast amount of different kinds of compounds that can be made from the carbon atom as the fundamental element. In nuclear chemistry one can study the man different parts of the atom. In all of these aspects of Science one truly can see the complexity and diversity in the creation.
Density is used to distinguish typically between different solids or different liquids.
Some solids look similar but can be distinguished because of their densities. The Scriptures speak of this diversity in describing different stones that were placed in the breastplate of judgment. Similarly, Revelation speaks of the foundations of the walls of the New Jerusalem being garnished with all manner of precious stones. In both of these cases there are twelve stones. In Exodus, the twelve stones refer to the twelve tribes of Israel.