Now this is a stone that a biologist can really love: the name “garnet” does not refer to just one stone, but to a series of several species (yes! Species! I told you biologists would love it) of stone, each one similar, and yet unique, in their formation and chemical structure. Oh January, January, you truly have a mess of riches. Read More Gosh-Garnet! It’s Time for January’s Birthstone.