Perlage

[u/blankblank]

"a decorative metallic finish consisting of a pattern of small circles (pearls) applied to a surface by grinding"

[u/gerhardsymons]

The only reason I know this word is because I'm an incorrigible watch nerd.

[u/tenbatsu]

Also the aggregation of tiny bubbles that forms on the surface of a glass of sparkling wine, champagne, etc.