Micron Gold is very fine gold particles. My experience with it is with mining bentonite where we found very small gold particles mixed in with the bentonite. We could not find a cost efficive way to reclaim the small amount of gold.
its a layer
The thickness of gold on a gold-filled watch varies, including on the same watch, as a gold-filled finish can vary in thickness. But generally, a gold-filled finish will be about 20-40 microns thick. A 20 micron gold-plate finish is a bit thinner than most filled-gold finishes but is more uniform. A 20 micron gold-plate finish will wear a long time and compares well with a gold-filled finish.
10 micron thickness plating (usually gold)
1 micron > 0.5 micron
0.5 micron.
10 micron.
Ofcourse 23 micron is thicker than 11 micron.
90 micron.
2 MICRON
A 5 Micron is more fine then a 20 Micron, It means, if a particle has a thickness of 1 micron. only 5 numbers of particle can be passed through a 5 Micron filter at a time while 20 numbers of Particle can be passed through a 20 Micron filters. the 5 Micron is more efferent to the 20 Micron.
10 micron.
10 micron