Skin Flakes
                The three human skin flakes here are easily seen in this
                  tapelift from a home. They all show stress birefringence.
              
              
                Transmitted Off Crossed Circular Polarized Light Illumination
                
Definition/Function:
                Significance in the Environment:
                Characteristic Features:
                Human dander varies from isotropic to particles with stress birefringence. The stress
                birefringence of human skin flakes tends to be low. The
                refractive index of human skin flakes tends to be around 1.550 but will vary with stress
                and oil content.
                Associated Particles:
                References: