» Natural fiber, will vary under magnification » Twist characteristic of cotton only

» Thin, delicate fiber » Crossover indentations

» Thickness varies depending on species of animal wool taken from » Same microscopic structure as hair ˃medulla – channel running down center ˃cuticle – outer layer ˃cortex – inner layer

» Synthetic fiber, little variation under magnification » Appearance will vary by manufacturer » Created to imitate silk macroscopically

» Synthetic fiber, little variation under magnification » Appearance will vary by manufacturer » Created to imitate cotton macroscopically