The phrase "white specks" refers to small white dots or dots that are lighter in color compared to the surrounding area.
Sentences with «white specks»
One time, I tried using milk grains with coconut water, and it turned out with little white specks on the top (mold?) (cheeseslave.com)
The small white specks in the photograph are likely cargo ships, with a few fishing and ferry boats mixed in. (discovermagazine.com)
Instead of using a kleenex (it leaves little white specks on my eyes and rips easily) or buying disposable cotton pads (which can get expensive!) (dwellinginhappiness.com)