In a separate bowl prepare the peaches. Cut into small pieces. You can peel if you want. Add raspberries.
Add the light brown sugar, cinnamon and lemon juice. Mix well. Set aside.
Allow the puff pastry to come to room temperature.
On a lightly floured surface, open the sheet of puff pastry, making a 9 x 9 inch rectangle.
Cut the pastry into 3 inch square pieces. This will yield 9 squares. Both sheets will yield 18 squares.
Roll out each square to help loosen up the pastry.
Take the prepared fruit and place 1 teaspoon of filling on one half of the pastry square.
Fold over the square into the triangular turnover shape, sealing the edges with water.
Take a knife and put two to three slits on the top of the turnover to help relieve steam.
Place the turnovers on a prepared baking sheet, using a silicon pad or parchment paper.
Take the egg and 1 teaspoon of water for an egg wash. Apply to the turnovers.
Sprinkle the turnover with crystal sanding sugar.
Preheat oven to 400° and bake for 15-18 minutes or until golden brown.
Remove from oven and allow to cool on baking sheet. °