Quartz powder is a finely ground form of quartz, a naturally occurring mineral made of silicon dioxide (SiO). It is derived by crushing and grinding quartz crystals into a fine particulate form.
1) Sizes:
Quartz powder is available in various mesh sizes (particle size):
100 Mesh (~149 microns) Coarse
200 Mesh (~74 microns) Medium
325 Mesh (~44 microns) Fine