Quartz from Mild Abrasive Cleaner
These are quartz particles from a "Mild Abrasive Cleaner". These particles are often left as a residue on surfaces after
cleaning. Their association with detergent residues in the sample confirms that source.
Transmitted Circular Polarized Light Illumination
Quartz is a common abrasive used on some sandpapers, as an abrasive powder added to cleaning agents, and on disposable fingernail files.
It is also one of the most common natural minerals.
Significance in the Environment: