I've got Mars in Gemini & it's a singleton! It's the only planet I have in air...

Does anyone else have Mars in Gemini?

Are there any characteristics anyone would like to mention?

Any favorite colors or special traits?

I'd like to know!

planets are modified by sign, where it expresses is house and how are the 'aspects'

I have mars in gemini in 5th house well aspected and also a singleton

Singleton planets
“If a planet happens to be the only one in an element, quality, or house type, that planet is a Singleton and it can funnel all of the “energy” of the horoscope. This planet is often the most important one in the horoscope. In other words, if you just interpret the position of this one planet by sign, house, and aspect, you will get to the “heart of the horoscope”. The effect is the same as if that planet were the only one on one side of the chart.”
http://www.bobmarksastrologer.com/13.0Singletons.htm
http://www.astrologyclub.org
http://en.mimi.hu/astrology/singleton.html
http://www.astrologyweekly.com/forum/archive/index.php/t-2334.html
(There is a book out by Shirley Lyons Meier, "Elemental Voids, More than Meets the Eye", which gives a good discussion of missing elements.) The Inferior Function can be a source of great motivation and creative expression.
http://www.astrologyclub.org/articles/singletons/intro/singleton_intro.htm