Moisten the outer <a href="/articles/cocktail-basics-techniques#rimmingaglass">rim</a> of a collins glass with 1 ounce of the pomegranate juice and coat lightly with sugar. Fill the glass with ice. In a cocktail shaker, muddle the lime quarters with the mint leaves and Ginger-Habanero Syrup. Add ice and the remaining 1 ounce of pomegranate juice and shake well. Strain into the prepared collins glass and stir in the club soda.