1/2 teaspoon ancho chili powder, for rimming glass
1 teaspoon salt, for rimming glass
4 sprigs cilantro
1 1/2 ounces 100 percent tequila blanco
3/4-ounce fresh lime juice
1/2-ounce agave nectar
2 ounces pineapple juice
1/4 cup mango, diced
Ice cubes