Birth Charts of People with Sun Square Mercury
An aspect of Sun Square Mercury in the natal chart indicates a person who has a sharp mind, whose self-image and identity tied up with their perception of their, intellect and dominates in conversations.
Actually this is an impossible aspect! Mercury never more than 28° from the Sun and Venus is never more than 48° from the Sun. (Thus only Mercury Conjunction Sun and Venus Conjunction Sun is possible. And only a 60° Sextile or Conjunction is possible between Venus and Mercury.) Also, an Ascendant can only be Trine, Square or Sextile the MC.