http://tinyurl.com/free-tattoo - 1000's Tattoo Designs The Gemini sign is represented by a set of twins, and not surprisingly, Gemini’s can often be dual natured. Ruled by Mercury and traditionally associated with the color green, Gemini’s share some of these common strong points: versatility and adaptability, communicative and witty, eloquent and intellectual, and youthfulness and liveliness