Earth Colors

Etsy seller Queinteresante has come up with a very clever idea: alternate labels for Crayola crayons which, instead of naming the color, name a compound, ion or element that has that color.
I just love that some of the materials are minerals. I didn't recognize sugilite or rhodolite; the former is a rare mineral found in magnesium-rich rocks, and the latter is a particular composition of garnet. We didn't do enough coloring when I took minerology.