Click on images for a larger view      Butterfly Scales, Transmitted Brightfield Illumination      Thin-section of Deer Bone, Red Plate Illumination      Thin-section of Deer Bone, Red Plate Illumination      Thin-section of Dinosaur Bone, Polarized Light      Thin-section of Dinosaur Bone, Red Plate Illumination      Thin-section of Dinosaur Bone, Polarized Light      Thin-section of Dinosaur Bone      Thin-section of Dinosaur Bone      Thin-section of Dinosaur Bone, Polarized Light      Graphene Deposit, Reflected Polarized Light with Red Plate      Graphene Deposit, Reflected Polarized Light with Red Plate      Graphene Deposit, Reflected Polarized Light      Gypsum Crystals      Liothyinine Crystals      Liothyinine Crystals      Biaxial Interference Figure, Circular Polarized Light      Ammonium Acid Phosphate, Polarized Light      Ammonium Acid Phosphate, Polarized Light      Lead Iodide      Uniaxial Interference Figure, Circular Polarized Light      Uniaxial Interference Figure      Tannic Acid, Polarized Light      Tannic Acid, Polarized Light with Red Plate