Ginger 'n' Spice Bubbling Blueberry Pie - Blueberries

Ingredients

• 2 1/2 cups all-purpose flour
• 1/2 teaspoon salt
• 10 tablespoons cold unsalted butter, cubed (1/4 inch thick cubes)
• 1/2 cup chilled all-vegetable shortening
• 3 1/2 tablespoons ice water
• 1/2 tablespoon fresh lemon juice
• 1 egg white, whisked to foamy (divided use)
• 4 1/2 cups fresh blueberries (room temperature)
• 1 tablespoon fresh lemon juice
• 3/4 cup granulated sugar
• 1/4 cup instant or quick-cooking tapioca-ground *(see tip)
• 2 tablespoons finely minced crystallized ginger
• 3/4 teaspoon ground cinnamon
• 1/8 scant teaspoon ground allspice
• 2 tablespoons melted butter
• 3 tablespoons orange marmalade
• 1/2 tablespoon raw turbinado cane sugar