1 × Emerald (Pear) - Marshlands. At the north east dock, shoot the animal skull above the altar.
Chapter 4-1
1 × Emerald (Pear) - Caves. Shoot the first brazier you encounter after climbing the ladder.
1 × Emerald (Pear) - Ancient village. Inside a brazier as you follow the path.
Chapter 4-2
1 × Emerald (Pear) - Worship area. In a brazier in the far north eastern area of the map.
1 × Emerald (Pear) - Pyramid. Shoot the skulls inside the room on the east side of the second level down. You need to align the light correctly to open the doors.
Chapter 5-1
1 × Emerald (Pear) - Underground garden. High up on the rock face on the northern side of the garden chamber.