Cancer With Gemini:

The homebody, introverted cancer may find club loving, outgoing Gemini way too hard to get for a good mate. While Gemini is constantly on the alert for changes and something new, Cancer is satisfied to become a truly domesticated mate, and ruts don't scare them. On the other hand, the cancerean moodiness may become too much for Gemini to cope with.

cancer and gemini - astrological compatibility rank = 1 (10 is best)

There would be better compatibility where the female is a Gemini and the male is a Cancer, especially if there are several children to keep the Gemini mother's time occupied. Cancers are driven by emotion and feelings and generally prefer the constant. Gemini's unstoppable movement will prove unsettling to Cancer.

CANCER goes with Scorpio, Pisces, Taurus and Virgo. (best match is Taurus)

Best Match For Cancer Is Taurus
This is an excellent match and you will find it hard to tear yourselves away from one another! Stay clear of getting too wrapped up in one another though...

Worst Match For Cancer is Gemini
You are too active for this one. The Cancer will want to stay home and cling, so to speak, while you want to go out roam, do things. Forget it! Your energy level is too much higher then the Cancer, and this will in most cases be too much to overcome.