Gemini is denoted by the sign of Twins and is the third zodiac sign. People born under this sign are dual natured, complex and contradictory, which is very well evident from the sign of Twins. They are affectionate, courteous, kind, generous, and thoughtful towards poor and suffering. Geminians accept new activities with great enthusiasm but lack the same at the time of implementation. Their versatility makes them adaptable and of an adjusting nature, though their general characteristics tend to make them unreliable. They are often skilled manipulators of language, in speech and writing, and may be: debaters, diplomats (though in politics they are more interested in theory than practice), orators, preachers (brilliant rather than profound), teachers, authors, poets, journalists, or lawyers. In business any work which combines quick-wittedness with a change of surroundings suits them; working as a traveling salesperson, brokerage work, or dealing with the public in any capacity is right up their alley. Because they are dispassionate, logical, rational and analytical they make good scientists, especially in the fields of medicine and astronomy and army personnel as well.
Negatively they can degenerate into confidence tricksters, thieves and even adepts in the black arts.
Gemini rules the arms, shoulders, hands, lungs and nervous system and its subjects need to beware of diseases and accidents associated with the upper part of the body, as well as nervous and pulmonary isorders such as catarrh and bronchitis. Their mercurial nature may also affect a constitution which is not strong if it is put under strain. You are prone to taking unnecessary risks and wind up harming yourself or others in the process. Sometimes pursuing pleasure too vigorously could also qualify as risk taking.
Your StarStone is Topaz, the gem comes in many different colors and is a member of the quartz group. It aids in bringing forth your leadership qualities and enables you to grasp control of any situation you confront in life. Topaz makes you feel more in control of yourself or the situations you encounter and helps you deal with them in a competent fashion. It helps you take the lead and handle things in a competent fashion. Tradition has it that Topaz helped foretell the future, enhance sexual energy, and promote harmony.
The planet Mercury rules Gemini and its element sign is air. Gemini is best compatible with Libra and Aquarius, and to a lesser degree with Gemini, Aries, and Leo. According to astrological compatibility, a Gemini and Sagittarius may have lots of differences between them.