I have heard in my various courses and just around in my life that tears caused by different emotions had different chemical structures. If this post is to be believed, then it makes sense that they would also have different physical structures when looked at underneath a microscope.
12-Sided Snowflakes by Kenneth G. Libbrecht, Caltech: Sometimes capped columns form with a twist, a 30-degree twist to be specific. The two end-plates are both six-branched crystals, but one is rotated 30 degrees relative to the other. This is a form of crystal twinning, in which two crystals grow joined in a specific orientation. #Snowflake #12_Sided_Snowflake
Alcohol under the microscope - BevShot images are made by first crystallising the drink of choice on a lab slide. Using a standard light microscope with a camera attached, the light source is polarised and passed through the crystal. This creates the magnificent colors. Each colour is a result of the ingredients contained in each beverage.