In this taxonomy poster, I display 175 minerals, gems and precious stones by their chemical composition. 

I learned so much about mineralogy doing this one. The hardest part was actually deciding which minerals to include. With approximately 6,000 known minerals in the world, I had to narrow it down to a manageable group. I'm sorry if I've missed your favorite! All the popular and well-known ones should be there. This is also the most popular poster in my store! Get your now here.