Mixed Berry Scones

Name: Mixed Berry Scones
Ingredients: 3 Cups all-purpose flour; 1/2 Cup white sugar; 1/4 Cup turbinado sugar; 1/2 Teaspoon baking soda; 2 1/2 Teaspoons baking powder; 1 Teaspoon kosher salt; 3/4 Cups unsalted butter, cut into 1/4- to 1/2-inch pieces; 1/2 Cup fresh blueberries; 1/2 Cup fresh blackberries; 1/2 Cup fresh raspberries; 1/2 Cup hulled and quartered fresh strawberries; 1 1/4 Cup buttermilk; 1 1/2 Teaspoon vanilla extract; 1/2 Cup heavy cream, for brushing; 1/2 Cup sugar, for sprinkling