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

3. » Thin, delicate fiber » Crossover indentations

4. » 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

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

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