Correspondences: Color: yellow Element: air Birthstone: pearl Planetary Ruler: Mercury Body Part: hands, arms Motto: I think Flower: Lavender, Lily of the Valley Positive qualities: twins are very communicative and flexible. They are spontaneous, funny, intelligent and like to talk a lot. Negative qualities: twins can be inconstant and superficial. They have a hard time controlling their nerves. Oils in blend: Lavender, Peppermint, and Lemongrass.