Well, you may have heard of at least some of these, but you can expand your color vocabulary. Now you'll be able to say "malachite" instead of "kind of a dusky teal green" or "sort of like that Ford van color but a tiny bit bluer." The car shown is the color known as malachite.
Link -via Interesting Pile
This color is also known as basic green 4 and is often used when creating a green dye. This vibrant green comes from the carbonate mineral known as Malachite, or copper carbonate. In the 1800, the mineral was widely used for green paints because it was lightfast and often varied in color. The color is one that is seen rampant in history. For instance, there is the Malachite Room in Hermitage, and it is also said that Demeter’s throne was made of this color as well.
Link -via Interesting Pile
I like using the Crayola colors as references :D